I think TOS violators detract future advertisers from using Adsense and it costs us all money (publishers and advertisers both) in the long run. If it was a case of a guy with a "click me" button around an Adsense ad, I would report his ass. I don't know why this guy is hiding his footer links and other stuff, but I am not sure if he is benefiting from it.
Wow! This text is hidden! Why people are doing this? Everyone can see, this is a seo spam and Search Engines will ban it... Nobody can make any profit from this spammy techniques...