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