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