They're all completely different issues. Anyone who has a ground-level view of adsense will know that their fraud detection/prevention system is broken. Legitimate users find themselves booted and scammers get away. The scammers who don't get away purchase accounts (illegally) and continue business because they're scammers and aren't particularly concerned about the law.

This, on the other hand is about a guy who built "extensions" on top of google+ and used its public interface in a way that was not intended by the google+ developers and got stung when they made a change. The author is over-reacting to something that isn't really a malicious action by Google.

Adsense is a pretty sketchy product at best, but most of the rest is just the third-party cost of doing business when you don't control what your business is based on.

Google still sees itself as a small, experimental company. A lot of businesses like to do this, and it's extremely hard to pull off. Google is finding this out first-hand. They're not exactly a startup anymore.