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