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