[PeterisP]

You make your peace with the fact that you'll have a certain rate of false positives, where you'll intentionally lose also some legitimate business in order to keep most of the "ecosystem" cleaner. Perhaps an unsatifying answer, but that's it.

It's not a situation like putting someone in prison where "beyond all reasonable doubt" is the appropriate mark; you can refuse to do business based on mere suspicion that may be mistaken. There's a limit where extra investigation or appeals is too costly compared to just accepting the lost revenue, and for small-scale customers, that limit is quite low. With fraud detection, you have to balance the tradeoff between false positives and false negatives, but you'll certainly have both.

[p49k]

In Google’s case, this is not enough. They exert too much control over the online advertising industry that it’s simply unfair to ban anyone with no explanation and recourse. It should be illegal. It’s almost impossible to effectively monetize an app or website using ads without including various Google technologies and services, and that’s Google’s own doing; they’re the ones who purchased all of those companies and integrated their own products in a way that makes them inseparable.