Why do I say no? Well, Google doesn’t like any kind of content related to Paid to Click. Google sees it as unnatural traffic, and it has a point. The traffic you are buying is not behaving like other kind of traffic and the visitors are “forced” to view. What’s strange is that Google Adsense call it “suspicious click activity and fraud”. PTC Traffic may not be natural but visitors are never forced to click ads.
Some PTC admins claim that their traffic is adsense free, I do not agree but I understand why they would say so. It’s very hard to earn money in this industry, I’m one of a few who can run a PTC site and state that PTC traffic is never fully Adsense safe.
Also some advertisers often use a .php redirect file to trick adsense, and that’s fine but it’s still not 100% safe. So basicly they buy traffic and send it to some .php page that has a working redirect to the real page. This way “referrer”, the source of traffic, will be a site that is not related to paid to click.