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