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