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