Something like that. More, I cannot say. Seriously. Google would cancel my AdSense account if I were to share their secrets.
Hmm, I remember Shoemoney posting about a conversation with a YPN rep when he got accused of invalid clicks and they wanted to disable his account. So I guess Google implemented something like this as well, if they didn't always have the service. It's slightly re-assuring that you know if you have a good site that generates $20k/ month you won't have to worry about your account getting banned in the morning. I suppose they would talk it over with you first. Hmm.. now only need to do 10x more work than currently and I'll get there some day .
If you are getting that many page views on a monthly basis, and have a low CTR, I might suggest trying to sell of ad space on your own. In fact, that is one of the best ways to make the most amount of cash. However, it isn't always easy to do and set up.
I don't think anyone is assured of that. I fully expect to be banned some day by one of Google's underpaid underqualified undertrained underskilled underclued laborers who now make those decisions. But until then, I'll just ride this ride and see where it takes me.
I guess every AdSense publisher has a rep - when you submit a support ticket to AdSense via email, it goes straight to your rep.
oh god thats a long way to go for me...im not even 0.1% of your figure now...congrats buddy for reaching that stage