We here every day in this forum that someone gets banned because of some reason. But I believe if you make good money for Google with your website, then Google will close his eyes if you are doing something illegal. Here I have a sample. I can imagine they are making good money and that means, they are the Google favorite publishers. Anyway I have here a link from that page, and it is showing how they have changed the code of adsense. They are showing over 18 links in every unit and I believe, it should not be allowed, but they are doing it. My question is, what do you think about that?. May be I am wrong? http://ezinearticles.com/?Make-Money-Online-With-A-Website&id=985999
Possibly they are premium publishers, and that means they are allowed to do some things we (non premium) are not. However, no doubt there are things they aren't allowed to do either, but I don't know if what they are doing is against TOS or not.