traffic from myspace bulletins has will give you a good ctr on your adsense, but adsense will ban your account.
Any traffic were users are rewarded paid to sign up, surf, read etc. Also it is really a wast of your own money to pay for traffic i wouldn't do it do some good seo on your site and build links.
Wouldnt you think adsense dont you to get traffic that doesnt get clicks, otherwise how will they get paid?
Google considers bad traffic from the sources that are likely to generate fraudulent clicks. But while you'll be purchasing there is also a problem of bad traffic for you (traffic that doesn't result in clicks) and a traffic that is bad for advertisers (clicks that don't convert to sales). But the last one is not your concern in case of CPC scheme.
Now why would they ban your account for that? Dude, they couldn't care less how few people click on your ads. That's your problem. Ban for a CTR that's too low, now THAT is hilarious.
actually i dont know why adsense ban accounts because of myspace bulletins. but i read a some threads here in DP about my myspace bulletins.. i will post those threads when i saw it.