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