i get annoyed with people who use FB to solicit their "friends" for their home-based business or to get votes for "the cutest kid to infinity and beyond of the week" competitions.
I don't need daily invites to buy your overpriced "food" products, or attend your out of state "food"/candle/sex toy party (don't forget, you can always order overpriced crap from their personalized website) or hourly status updates reminding me to vote for a kid in some contest (the one i blocked today - that kid is NOT cute - there's a very good reason she's ranked #387 and dropping, give it up.)