It's funny you mentioned this. I was researching Piwiks as an analytics tool today. In a few of the articles, they gave reason to use Piwiks because it shows more traffic than Google Analytics does, with graphs to demonstrate. These were articles from over the past few years. DDG or google search "piwiks analytics better than" and you'll likely see the same articles.

I've also seen on many SEO forums that people have complained about the same things in regards to getting banned days before their payout.

Most website advertiser types are the kind of people who are recalcitrant to file a lawsuit. I know I am myself. So really, it's a good business decision in this regard.

I can't accuse Google of anything though. On the other hand, automating account bans past a certain earning threshold unless they're high profile people seems easy to implement, with a massive earning when done on the multi-billion-dollar [0] ad revenue scale that Google oversees.

[0] http://www.adweek.com/news/technology/google-finally-crosses...