Big Money PTR's

Just recently I've noticed a lot of big game PTR's coming out in the Internet. I'm talking about sites that offer large amounts of money for reading emails (as low as $1 per email) which I think might be too good to be true.

So this is what I did. I signed up for as much of them as possible to see how they work. I know I might end up scammed in the end, but it's okay I didn't invest anything. It's kind of funny though because there really are a lot of emails to read everyday which sets off alarms in my head. Why? It's because I think people are advertising in there solely because they also think it's a scam and they won't get paid so they take advantage of the chance to advertise other accounts.

But anyway what do you think?