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