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