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