In the rich text editor:
@neurostereo
In a comment:
[neurostereo](https://www.chowlings.com/user/neurostereo)
For Names and Avatars:
In the rich text editor:
%neurostereo
In a comment:
[](https://www.chowlings.com/user/neurostereo) [neurostereo](https://www.chowlings.com/user/neurostereo)