One thing I've noticed looking at different boards is there are a lot of "professional posters" out there.
They will have some kind of political, economic, or religious agenda and post under many different profiles. It's kind of bizarre when you realise what you've been reading is from the same person. But apparantly there are companies hiring people for that.
Maybe that's even what most posters are like? Who knows. At least I'm not one of them. Well, I'm too unpredictable to be.