Maybe I've lost the plot.
For a site having several hundred (or thousand) subscribers, the visitors would be from same sets of IPs. Is there some chance for Google to think of it as some unusual activity or invalid clicks?
Now unless you just so happen to, for some very curious local reason, have all your visitors from your own giant local ISP?
Entirely possible... Unless I missed some critical point.
BUT, if I were from Google's algorithm, I'd think it "suspect".
Now smarter people than me will demonstrate where I'm obviously wrong.
Thinking locally and, I don't think I am wrong here but, as always, I'm open to correction.
Now I do NOT have any web sites with my ISP, that's BigPond for Australians.
Imagine if ALL my visitors came from BigPond's IP's
What conclusion would Australian AdSenser's here come to?
I'd have to have one of the narrowest, targeted sites around. Improbable.
AdSense maybe stupid but, not entirely stupid.