these backlinks are useful but not for having adsense click or affiliate clicks. the reason is simple. these visitors will help only to down your alexa PR and ameliorate your GG PR. It's because these visitors are not searching for your keywords. They come on your site, leave their ip and go back right away. Don't expect to sell anything just because you have lots of these visitors. If you are using statcounter you'll notice that whether you have 100 visitors per day when you look at recent keyword activity you won't see any keyword. if you see some, so you got interested visitors and they are different from these real visitors you buy from this thread.
The traffic comes in as referral traffic, just like from twitter or any web2.0 property. They seem real, my bounce rate has gone down i have received clicks. Why not see the reviews before judging.