Let's see if I can summarize some of the salient points:
If your traffic doesn't retain as well as they like, they won't pay you. Some per signup program. Sounds more like an Active Member program to me.
They don't have any contact info on their site.
They're not interested in people who send a low amount of signups and will in fact favor the ones that send lots. Fair enough - now put this on your front page: "We screw small webmasters"
Anyway, I notice you answered neither me or Wildman's concerns about getting paid. My check is several months overdue now, and it's not a lot, but it's sure fun letting people know what scammers you are.
It's also interesting to note that you would have done far less damage to your rep by not posting at all. Good job!
Cheers,
Backov
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