Spam on the View Counter

I was about to celebrate my 60,000 viewer, and started to investigate why my view rate has increased a fair bit lately and unfortunately its mainly due to two site vampirestats and adsensewatchdog (please don't visit them), they are a new sort of spam. They don't have anything to do with google or adsense. They are apparently just polling our blogs in an attempt for you to link back, but it is hard to see why they are doing this.

• Are they just gaming google?
• Are they harmless?
• Can their views be automatically wound back to restore the integrity of the view counter?
• Why doesn't google block them on blogger?