Well...I would disagree there.

It is a social network for sure but some people also have a lot of money invested in it (well to be fair you can do this with facebook and stock of course also) and with that and the option to earn it becomes more as just a social network.

For most people it will and should be probably a place where you can express yourself and exchange ideas with others. But as soon as money gets involved people will do crazy shit to earn it also.

I like that proverb :-)