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