In the rich text editor:
@2chan4you
In a comment:
[2chan4you](https://chowlings.com/user/2chan4you)
For Names and Avatars:
In the rich text editor:
%2chan4you
In a comment:
[](https://chowlings.com/user/2chan4you) [2chan4you](https://chowlings.com/user/2chan4you)
