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