In the rich text editor:
@FolkieYote
In a comment:
[FolkieYote](https://chowlings.com/user/FolkieYote)
For Names and Avatars:
In the rich text editor:
%FolkieYote
In a comment:
[![FolkieYote's Avatar](https://chowlings.com/images/avatars/2954.png?v=1703339124)](https://chowlings.com/user/FolkieYote) [FolkieYote](https://chowlings.com/user/FolkieYote)