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