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