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