Welcome to Codidact Meta!
Codidact Meta is the meta-discussion site for the Codidact community network and the Codidact software. Whether you have bug reports or feature requests, support questions or rule discussions that touch the whole network – this is the site for you.
Post History
This is not only a bad idea for the reasons already outlined in existing answers, but: Codidact is first and foremost a Q/A network, not a discussion forum, not a helpdesk, not a chat service, and...
Answer
#1: Initial revision
This is not only a bad idea for the reasons already outlined in existing answers, but: Codidact is first and foremost a Q/A network, not a discussion forum, not a helpdesk, not a chat service, and not a social media. Being able to mention users in posts would directly contradict the goals of this network. For a curated repository of quality answers to quality questions, it makes no sense to have mentions of users in posts. When I search the internet for answers and solutions to questions or problems, I want to find content that's suited for me (or anybody else who might land on the network), not content suited for a specific user. Allowing pings in posts hurts our abilities to build an impersonal knowledge repository with the purpose of reuse.