A couple of days ago, I was going through the main page of LJ and up popped (no pun intended) a very large (very large) penis. Not cool since I was at work. Happily it quickly vanished.
I'm going through my Friends of Friends page yesterday when up pops something that should be on a porn site. Lots of very explicit guy-on-guy action. Again, within a few hours, they, too, vanished.
While I realize what you put on your journal page is your business and I wasn't really offended, but there are some things that really could probably be behind a cut.