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