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