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