They seem to federate everyone, including the weird CP guys.
Honestly they should only federate with instance from official, hand picked, high standards projects, kernel, gnome and Co. They don't want to take any risks with an instance like ours.
edit: the demonstration for it is the person who downvoted my post: https://kbin.social/u/iluvroris (visible in the activity tab)
even his profile is nsfw. This is exactly the reason why kde must NOT federate with us, because of freaks like iluvroris. That's the harsh reality. As long as we accept nsfw, we cannot and should not be federated by big brand like KDE. We have to pick who we federate and it cannot be everyone.
shepherd
DrChickenbeer