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