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