In the rich text editor:
@KaiToTheSky
In a comment:
[KaiToTheSky](https://chowlings.com/user/KaiToTheSky)
For Names and Avatars:
In the rich text editor:
%KaiToTheSky
In a comment:
[](https://chowlings.com/user/KaiToTheSky) [KaiToTheSky](https://chowlings.com/user/KaiToTheSky)