In the rich text editor:
@DessertDingo
In a comment:
[DessertDingo](https://chowlings.com/user/DessertDingo)
For Names and Avatars:
In the rich text editor:
%DessertDingo
In a comment:
[![DessertDingo's Avatar](https://chowlings.com/images/avatars/466.png?v=1644063296)](https://chowlings.com/user/DessertDingo) [DessertDingo](https://chowlings.com/user/DessertDingo)