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