In the rich text editor:
@Goofygogou
In a comment:
[Goofygogou](https://chowlings.com/user/Goofygogou)
For Names and Avatars:
In the rich text editor:
%Goofygogou
In a comment:
[![Goofygogou's Avatar](https://chowlings.com/images/avatars/3338.png?v=1721514290)](https://chowlings.com/user/Goofygogou) [Goofygogou](https://chowlings.com/user/Goofygogou)