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