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