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