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