In the rich text editor:
@Sugarrbyte
In a comment:
[Sugarrbyte](https://chowlings.com/user/Sugarrbyte)
For Names and Avatars:
In the rich text editor:
%Sugarrbyte
In a comment:
[![Sugarrbyte's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/Sugarrbyte) [Sugarrbyte](https://chowlings.com/user/Sugarrbyte)