The way I see it, it all depends how you use it. If you post every little bit, every day and upload pictures straight from your phone — don't be surprised. It's like anything else in life "you get what you're asking for".
I have a FB account and started two Groups. No hanky-panky in my Groups, both are "Closed Groups" i.e. one has to become a member. And since I vet every application and have "quite a bit" of Internet experience, the spammers and other riff-raff have a hard time getting in — some are persistent and try to become members using different accounts. That's when the FB "features" shine to keep them out.