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