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