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