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