In the rich text editor:
@Nohbdi
In a comment:
[Nohbdi](https://chowlings.com/user/Nohbdi)
For Names and Avatars:
In the rich text editor:
%Nohbdi
In a comment:
[![Nohbdi's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/Nohbdi) [Nohbdi](https://chowlings.com/user/Nohbdi)