[option1138]

I think %50 of the problem is the arbitrary picking of sites to block (and it's not working, btw[1]) and %50 of it is that google seems uninterested in explaining or advising people when it happens to them.

This. Assume you work on the webspam team and you have a 92% spam detection rate but a 99.9% accuracy rate on what you do detect.

There are around 40,000,000 active domains in a given month listed on Google. That means 40,000 sites on average are being penalized without reason.