In the rich text editor:
@gaekey
In a comment:
[gaekey](https://chowlings.com/user/gaekey)
For Names and Avatars:
In the rich text editor:
%gaekey
In a comment:
[![gaekey's Avatar](https://chowlings.com/images/avatars/1493.png?v=1719633305)](https://chowlings.com/user/gaekey) [gaekey](https://chowlings.com/user/gaekey)