Yes, that is a big claim to make since no one really know how Google’s algorithm operates, but it’s a pretty good guess. There have been a few cases where disabled account owners have appealed their accounts and after having their appeal denied, have sued Google for the amount earned in their AdSense account — and in almost all cases (where the user was victorious), Google has paid the user the amount due rather than revealing the algorithm used to determine the invalid click activity.
Now, think about it — why would Google be so private and secretive about their algorithm besides the obvious reason that they don’t want people to learn how to bypass it. The other reason (and I am certain), is that Google collects private information from your computer via their applications (Google Earth, Chrome etc) because it actually is possible to do so. What makes me so certain that Google does this is the fact that they are able to link people’s new accounts to their old accounts despite a change in IP address, shipping address and email — the only possibility left is MAC address detection, which is a local value assigned to each network card (unique to every computer).
It’s kind of sad that a company that emphasizes so much on user privacy would infringe on people’s privacy rights in such a hidden manner that no one can be certain that they’re actually doing it. Personally, I would like to know what you guys think — does Google actually do such a thing? Comment below!