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