In the rich text editor:
@Byakko
In a comment:
[Byakko](https://www.chowlings.com/user/Byakko)
For Names and Avatars:
In the rich text editor:
%Byakko
In a comment:
[](https://www.chowlings.com/user/Byakko) [Byakko](https://www.chowlings.com/user/Byakko)