If the spam cant be mitigated at the moment, i think the "shitty hubski" option becomes a design flaw. Unless it can be made ironically shitty somehow. Now thats a challenge.
I can't read German, damn it.
edit: there's literally a post titled "Angelina Jolie."
edit2: Apparently people filtering the same user will eventually auto-filter that user for everyone else! neat-o!