This is just glorious! I'm sure many others have linked to this but just in case you missed it, it's worth a quick read.
http://www.perverted-justice.com/ The blurb on "LJ Stupidity" is the second entry down in the main section. Here's an excerpt:
"Apparently LiveJournal can't tell the difference between what a pedophile community is and a Harry Potter fan-fiction community despite being told months ago which is what."