In the rich text editor:
@EggnogDestroyer1000
In a comment:
[EggnogDestroyer1000](https://chowlings.com/user/EggnogDestroyer1000)
For Names and Avatars:
In the rich text editor:
%EggnogDestroyer1000
In a comment:
[](https://chowlings.com/user/EggnogDestroyer1000) [EggnogDestroyer1000](https://chowlings.com/user/EggnogDestroyer1000)