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