In the rich text editor:
@GlitchFellow101
In a comment:
[GlitchFellow101](https://chowlings.com/user/GlitchFellow101)
For Names and Avatars:
In the rich text editor:
%GlitchFellow101
In a comment:
[![GlitchFellow101's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/GlitchFellow101) [GlitchFellow101](https://chowlings.com/user/GlitchFellow101)