Plus you could make the argument that by flooding the internet with enough worthless information, it actually can make it more difficult to police.

I've sometimes thought about purposely doing exactly this to my Facebook page - joining literally every group that comes my way, Republican, Democrat, Libertarian, Fascist, Anarchist, Buddhist, and Ba'hai, Catholic and Jewish, and pro- and anti- almost everything, everywhere in the world, regardless of whether they are written in English, PURELY to mess with the signal to noise ratio.  It'd also be fun to create a bunch of invisible friends, and make up postings for them.  I'm thinking seriously about adding my school's semi-official invisible friend (a student who never attended a day at my high school, is nevertheless a living legend among it's alumni).  Like my school's friend, I could make up wonderfully dramatic lives - ranging from world-traveling hippies to drug and drama addicts, to megacorporation jet-setting execs, and so on.  It'd be fun to set up their interests, hobbies, and perspectives to play with people's expectations.  I think it could get to be an art form - a reflection on the variety of personality niches that are so close to empty, yet would be possible in the space of human experience.

As a data geek myself, I'm pretty sure you could skew the data badly enough to make sorting it at least challenging, possibly unrewarding, and given enough effort and organization, almost impossible.