It seems to use a bot to collect certain tagged fics and has already taken fic from rare-pairing.
as a result I'm probably going to lock all my communities to members only as a protection measure. I have also contacted live journal to see if anything can be done.
I've posted the site below please check if your work is there and if you're not happy you can request that they take it down.
UPDATE: if you are affected (this mod is!) go to the domain's abuse support page and report it! http://www.privacyprotect.org/#report_abuse