[eon1]

Yeah, bots were my first thought. Run any decent sized fb group and you'll realise just how many there are, then realise you're probably only seeing a small cross section. I would say thousands new every day. I saw a friend having some fun a while back posting public statuses to bait spambots with keywords like "tupac movie" and "watch online" - they get flooded within minutes. Also, I have at least 3-4 accounts and know plenty of people who have as many, too. Can't imagine how they'd differentiate that from say, my housemate or partner logging in from the same IP address.