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