remember when i first realized my ads where showing on parked domains.
parked domains + adsense encourage fraud.
a domain that was basically the same as mine with adsense, and at the time they were bidding using adsense "arbitrage"
I had to google to find out how to block. I always wondered how much did i lose to these scam park domains.
I hope they start this class action suit. park domain should have been highlighted, or blocked by default.