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