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