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