In the rich text editor:
@Ginsuou
In a comment:
[Ginsuou](https://chowlings.com/user/Ginsuou)
For Names and Avatars:
In the rich text editor:
%Ginsuou
In a comment:
[![Ginsuou's Avatar](https://chowlings.com/images/avatars/1038.png?v=1644063245)](https://chowlings.com/user/Ginsuou) [Ginsuou](https://chowlings.com/user/Ginsuou)