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