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