In the rich text editor:
@12doggos_ded
In a comment:
[12doggos_ded](https://chowlings.com/user/12doggos_ded)
For Names and Avatars:
In the rich text editor:
%12doggos_ded
In a comment:
[](https://chowlings.com/user/12doggos_ded) [12doggos_ded](https://chowlings.com/user/12doggos_ded)