In the rich text editor:
@M0nARCH
In a comment:
[M0nARCH](https://chowlings.com/user/M0nARCH)
For Names and Avatars:
In the rich text editor:
%M0nARCH
In a comment:
[![M0nARCH's Avatar](https://chowlings.com/images/avatars/60.png?v=1702598388)](https://chowlings.com/user/M0nARCH) [M0nARCH](https://chowlings.com/user/M0nARCH)