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