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