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