Pretty interesting story, but definitely an example of giving away lock picks while selling better locks.
What do you mean, he's not trying to sell us anything, is he?
The author claims his company can detect this kind of click fraud (indeed, the whole article is about how they did) through proprietary methods. If you're an advertiser it's likely this behavior is about to become more common.
contains some NSFW images. They could have been put somewhere else. This is an interesting article.