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