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Comments on We need to talk about Abilities
Parent
We need to talk about Abilities
The problem
Almost three years ago we introduced Abilities to Codidact as an improved system for granting activity-based permissions, such as allowing users who have made consistently great edit suggestions to edit posts without requiring approval. I'll defer to the linked posts on how Abilities function in detail.
I do still believe that coupling permissions with specific experience in the area of the permission is a good idea and should be kept as the basic premise of the permission system.
However, there are a three major issues I see with how our abilities system works currently:
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The Ability thresholds are calculated using the Wilson score formula we use for posts. This means, that the minimum number of (positive) actions needed and the minimum percentage of positive actions are directly coupled.
In some cases this coupling can be inappropriate for the intended purposes. For example, a community might want a user to have suggested many edits to demonstrate experience but want to require only an average approved percentage of like 75%. In our current system this would not be possible.
In some cases communities might want the opposite. They would want a high percentage of 95% edits approved, but because they have low activity they only want a small sample of 5 edits (which would of course mean that once one edit is rejected your amount of edits that need to be approved would rise drastically). This would also not be possible with the current system.
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Currently abilities are directly coupled with permissions. This means, that the system will check whether or not you have a certain ability and will infer your permission from this. This becomes a problem once a permission should be inferred from multiple abilities, because then the every time a permission is checked the code would have to keep in mind how exactly abilities bind to permissions, and if multiple permissions are coupled into one ability, because they are then affixed together as an all-or-nothing thing. However one might want to separate permissions from another for moderation purposes. A user might need to be banned from reviewing edits while their power to edit posts should not be restricted.
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The current system is based on specific existing abilities hard-coded in the application. However communities might want to change the ability progression to better match their individual needs.
A solution?
Therefore I am proposing some tweaks to how abilities are implemented:
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There are two factors: "privileges" and "abilities" (or "trust levels").
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Privileges are technical allowances, such as "may edit other people's posts without review", "may review suggested edits" or "may vote to close". A user can have or not have a privilege at any time.
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Abilities are steps on the progression ladder. Technically an ability consists of one or multiple privileges and a "win condition". If you earn an ability, you will be granted the privileges it contains.
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Privileges can be individually suspended by moderators (as abilities can be suspended for time/infinity right now). Abilities cannot be suspended because the only thing that goes beyond suspendable privileges are "bragging rights".
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Abilities are reached when its win condition is reached. A win condition may consist of multiple requirements, each of which must be completed. Requirements could be, for example,
- minimum user age
- obtaining a specific ability
- minimum post count
- minimum positively received post count
- minimum percentage of posts positively received
- minimum (suggested) edits
- minimum approved/applied edits
- minimum percentage of suggested edits approved
- minimum flag count
- minimum helpful flag count
- minimum percentage of helpful flags
- minimum close/delete votes
- minimum effective close/delete votes
- manual appointment (i.e. this ability can only be awarded manually)
As before, moderators would have all such privileges.
Something similar to the current ability progression should be set as standard, so that we have an ability trees not unlike this:
- everyone (general path)
- established user (general path)
- editing posts (edit path)
- editing tags (edit path)
- closing posts (mod path)
- deleting posts (mod path)
- editing posts (edit path)
- moderators
- established user (general path)
However communities would be free to change this progression as they like.
I think that these tweaks would allow better bootstrapping of communities and would allow it to better react to community size with configuring the ability system.
Discussion
What do you think? Do you have any other ideas on how to improve abilities?
My main area of concern would be your "Problem", point 2. You seem to have put a lot of thought into that one as well, b …
11mo ago
I want moderators to be able to grant or suspend abilities at fairly granular levels, because sometimes that person who' …
11mo ago
coupling permissions with specific experience in the area of the permission is a good idea and should be kept as the bas …
11mo ago
Post
coupling permissions with specific experience in the area of the permission is a good idea and should be kept as the basic premise of the permission system.
I disagree. This is the basic flaw of the current abilities/permission system. It is trying to be overly specific and misses the forest for the trees.
Basically, we only want people that know what they're doing to be allowed to do things that could damage the site. That's basically all there's to it. The problem then comes down to determining "know what they're doing".
The problem with our current system is that it dives deep into irrelevant minutia in trying to determine "knows what what they're doing" along various different orthogonal axes.
For example, you're not trusted to edit a post if you haven't edited enough previously that others agree were edited well. But, having performed previous edits is a very narrow way to measure "knows what they're doing" when it comes to edits. What you really want is someone that knows a good post from a bad one. Simply writing a bunch of good posts should be good enough to demonstrate that.
All the various "knows what they're doing" attributes are closely linked. If someone has been around a site long enough and has a track record of positive contributions, we should assume they "know what they're doing" and give them the powers to help with the janitorial work.
Some actions have more potential for damaging a site than others, so there should be a higher "knows what they're doing" threshold to allow them. For example, editing others' posts doesn't need a high bar. Most edits are uncontroversial spelling or grammar fixes. If someone changes meaning against the author's intent, then the edit can be rolled back and a warning sent by a mod.
On the other hand, closing questions is often controversial even among experienced users with solidly positive track records. Users should be selected carefully to receive that permission.
In summary, lots of different successful positive actions on a site should increase one's "knows what they're doing" factor, which in turn should unlock various permissions. These things aren't anywhere as orthogonal as our current system treats them.
As an example, I have the highest rep on the Physics site, by more than 2x the next user. I've written 36 answers with an average of 2.0 upvotes per answer, and only one with a negative score. That should be plenty good enough to be trusted to know what a good question looks like, even though I haven't written any question. I've also done 21 edits, but am still not trusted to make edits without them being approved by someone else. That's ridiculous!
As a real world analogy, the current system is akin to saying you're not trusted to review books without having written a best-seller. Just having read many books doesn't somehow give you the experience to be able to rate the books you've read. That makes no sense in the real world, and not much more sense here on Codidact.
I don't necessarily dislike the idea of certain privileges being tracked orthagonally to the "knows what they're doing" factor, as you called it. But at some point, the latter should be sufficient to gain access to most privileges.
I totally agree and should have pointed that out myself. Testing your ability to carry out specific actions properly can be useful to allow you to perform those actions without supervision when we've got nothing else to judge you by. However, once you accumulate enough "know what you're doing" factor, privileges should unlock regardless of the mix of specific actions you've taken.
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