Well I'm sure Google knows the IP's of many proxies especially the most popular web-proxies, and if they see a lot of clicks from these they will get very suspicious indeed. I think it would just be better to play it legit and be safe. Instead of working so hard on scheming on how to cheat google out of its money why don't you take that time and effort and put it into making your site more popular and that way get your rightfully owned money legit.

You should really be careful with this, I mean if you get 5 clicks per day and they all come from the same IPs, it's going to be very suspicious, and I can see the picture of you having 90 fraudulent $ and getting a message like 'you're banned, sorry'.

To be honest, the plan looks pretty flawless to me, what I think the idea was to get a huge network of people together to click on each other's ads, where a script would stop them clicking more than 3 or so times and tell them which ones they hadn't clicked on. if everyone did it, everyone would feel the benefits.

Plus, being banned wouldn't bother me at all! because I don't use ads usually, so if I get banned, I don't lose anything, but if I get money, then I certainly gain!! It's a win win situation =)