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