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