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