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