In the rich text editor:
@13oddeyes
In a comment:
[13oddeyes](https://chowlings.com/user/13oddeyes)
For Names and Avatars:
In the rich text editor:
%13oddeyes
In a comment:
[![13oddeyes's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/13oddeyes) [13oddeyes](https://chowlings.com/user/13oddeyes)