In the rich text editor:
@_bm
In a comment:
[_bm](https://chowlings.com/user/_bm)
For Names and Avatars:
In the rich text editor:
%_bm
In a comment:
[![_bm's Avatar](https://chowlings.com/images/avatars/1873.png?v=1695393174)](https://chowlings.com/user/_bm) [_bm](https://chowlings.com/user/_bm)