In the rich text editor:
@_ccottag3
In a comment:
[_ccottag3](https://chowlings.com/user/_ccottag3)
For Names and Avatars:
In the rich text editor:
%_ccottag3
In a comment:
[![_ccottag3's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/_ccottag3) [_ccottag3](https://chowlings.com/user/_ccottag3)