In the rich text editor:
@Canoziro
In a comment:
[Canoziro](https://chowlings.com/user/Canoziro)
For Names and Avatars:
In the rich text editor:
%Canoziro
In a comment:
[![Canoziro's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/Canoziro) [Canoziro](https://chowlings.com/user/Canoziro)