Well I've been flying the sh$t out of my drone for a few weeks now and my verdict is they should all be banned immediately . They are a total invasion of privacy. The only people that should be allowed to use them are cops (but they must get a warrant first clearly stating the reason and need) or commercial operators under strict guidelines that they retain either a video or track log info of the entire flight that is made available to the public upon request under a FOI type deal.
These things are going to start a lot of lawsuits and arguments and probably wars between banana republics. I can see every nosey bastard, pervert and busybody getting one and annoying the **** out of people.
Ban them now.