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