Good ol' Justin's become something of an internet hate figure, despised for his squeaky voice and stupid haircut, among other things. You're unlikely to hear anyone but a pre-teen girl praise his musical talent, or even use his name in a sentence without also saying the word "suck." Whenever someone feels the need to proclaim their favorite band/music genre's superiority over the mainstream, the first thing that comes to mind is our friend J.B. (more like B.J., AMIRITE???) I guess the point I'm trying to get across is that he's not well liked on the interwebs. People tend to make a big stink about him, and I have to wonder: why?
You see, as far as I'm concerned there's really no point in complaining about a harmless cultural phenomenon (here meaning "fad") especially when it's so easily ignored. And yes, it is easy to ignore. Believe it or not, I've yet to even hear a single Justin Bieber song, and in fact the only reason I know he exists is because of people endlessly complaining about him.
So basically, it seems like one of the biggest reasons Justin is so well known is because of the dissenters. If we'd just stop paying attention, maybe the whole thing would disappear from the collective memory of non-fans. Besides, if people want to listen to crappy music then that's their choice. It's not like you're being tied down and forced to listen to it (though from what I hear, that may be an effective torture method.) Give the complaining a rest. There are better things to worry about than some famous kid with a penis head haircut.