In the rich text editor:
@9_largedogs
In a comment:
[9_largedogs](https://chowlings.com/user/9_largedogs)
For Names and Avatars:
In the rich text editor:
%9_largedogs
In a comment:
[![9_largedogs's Avatar](https://chowlings.com/images/avatars/11.png?v=1721194139)](https://chowlings.com/user/9_largedogs) [9_largedogs](https://chowlings.com/user/9_largedogs)