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~~This isn't bad idea. I want some more features on the tag system.~~
<h2>Why tag is in answer useful?</h2>
Actually, there's lot of versions of systems/programming languages. Read [the question (Should we use more specific version tags for software?)](https://powerusers.codidact.com/posts/281966). In that question an user said that he had posted [the question](https://powerusers.codidact.com/posts/281940). And, he was saying that should he add specific version of tags? But, answer on that question strictly said not to use specific version. But, suppose I am using older version of Windows. And, I can solve the problem by few steps in that. And, that questioner said that he was using `Windows 10 21H1`. So, my answer may not solve his problem cause, Windows updates system settings in most of version. Same thing might happen for programming also. Like I had asked a question in Unix SE, I asked that **why I can't install tensorflow in python?** But, some people were saying to run the following command.
~~```~~
~~pip3 install tensorflow~~
~~```~~
Unfortunately, my python version was 3.9. And, tensorflow directly doesn't "exist" in Python3.9. And, if the answerer added a tag which python version he is using than, I could understand why the answer isn't helpful for me. And, I had downvoted on that answer. When I researched little bit I found accurate answer for me. I had executed following command then, my problem was solved (only for Python 3.9 maybe for higher version also).
```
~~pip3 install tf-nightly~~
```
~~That's why tag is in answer very useful.~~
~~<h2>Why tag is in answer useless?</h2>~~
If you think of meta sites than, you will notice tag on answer is nearly meaningless. Let's take an example, suppose I want to add tag to this answer. So, I will have to add <a class="badge is-tag " href="/categories/3/tags/4964">answers</a> and, <a class="badge is-tag " href="categories/3/tags/968">tags</a> but, those tags are available in Question, So tags isn't necessary. Even, example of Meta sites won't be a good idea. So, I am giving example of another community. Let's look at <s id="bug">[Languages & Linguistic](https://languages.codidact.com/posts/282252) (Unfortunately, markdown isn't working here. I am adding HTML tag without removing it for marking as bug)</s> <a href="https://languages.codidact.com/posts/282252">Languages & Linguistic</a> community, (I had linked a question) In that question you can see where author asked for meaning of "po" (Lanuage :Filipino). The answer also needs same tag as given in question that's why tags aren't useful. Same things happen to following communities either.
- Judaism
- Language & Linguistic
- Christianity
~~- Mathematics (for few questions only)~~
~~- Physics (for few questions only)~~
~~<hr/>~~
~~I want two more features on tag system for answer.~~
~~1. You can't ask a question without any tag. But, I want that user can answer in questions without tag either (only for answer not for question).~~
2. If you [visit your profile](https://meta.codidact.com/users/8046) than, you will see that Q&A and Answers are mixing up. For that reason, if you want to find any specific answer to re-edit (Or, for something else) again than, it will be very hard to find (I am just giving it as sample, The feature is available on TODO list). As Q&A and Answers are mixing up in profile than, if you add tag to answer than, the answer with `feature-request` will show in [this list](https://meta.codidact.com/categories/3/tags/961) also. That's why I want to separate question's tag and answer's tag.
~~<hr/>~~
This question's(<a href="https://meta.codidact.com/posts/282101">Taking our design to the next level: feedback wanted</a>) answer should "need" tag. So, it means tag is useful for Meta post also. Earlier I said,"let user answer question without any tag also". But, I think it would be better if questioner can remove tag system in answer or, add tag system in answer (Actually, if questioner thinks that answer of that question needs tag than, questioner will allow user to add tag or, disallow) {But, I want the feature(Let user answer question without any tag) also}.

This isn't a bad idea. I'd like the tag system to have some more features.
## Why tags on answers could be useful
Systems and programming languages can have a lot of versions. For example, consider the previous discussion at https://powerusers.codidact.com/posts/281966, which is about whether [this question](https://powerusers.codidact.com/posts/281940) should be tagged to indicate a more specific version of Windows. The consensus was not to do so. But suppose I were using an older version of Windows, and could easily solve the problem in that version. Knowing that OP uses `Windows 10 21H1`, it could happen that my answer doesn't solve the problem - since Windows updates system settings with most version updates.
Similarly with programming langauges. I asked a question on Unix.SE about trying to install Tensorflow in Python. Some people were saying to use
`pip3 install tensorflow`, but it turned out that Tensorflow was not supported by my Python version (3.9). After doing a bit of research I found an accurate answer - I needed to run `pip3 install tf-nightly` instead. If the answerer had added a version tag, I could have understood why the answer wasn't helpful for me. Instead, I downvoted the answer.
## Why tags on answers might not help
Tags on answers for Meta sites seem nearly meaningless.
For example, suppose I were to add tags to *this* answer. I might use some code like
```
<a class="badge is-tag " href="/categories/3/tags/4964">answers</a>
<a class="badge is-tag " href="categories/3/tags/968">tags</a>
```
to get <a class="badge is-tag " href="/categories/3/tags/4964">answers</a> <a class="badge is-tag " href="categories/3/tags/968">tags</a>.
But the question already has these tags, so they aren't necessary on the answer.
Similarly, consider [this question](https://languages.codidact.com/posts/282252) from the Languages & Linguistics community. The answer would again only have the same tags as the question (to indicate the language that the question is about).
The same would apply to these communities:
- Judaism
- Language & Linguistic
- Christianity
- Mathematics (for some questions)
- Physics (for some questions)
---
I would like a tag system for answers to have these features as well:
1. It should be possible to post an answer without any tags (although a tag is required for questions). (On reflection, answers for questions [like this one](https://meta.codidact.com/posts/282101) seem like they should "need" tags. So perhaps it would be better to allow the person asking the question to choose whether answers will be tagged.)
2. User profiles (such as [Monica's](https://meta.codidact.com/users/8046) mix questions and answers together. This makes it hard to find specific answers (to edit them or for any other reason). If answers have tags, then the same mixing would naturally happen to per-tag post lists [such as this one](https://meta.codidact.com/categories/3/tags/961). The system should separate tags for questions and answers to avoid this.

Communities

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