That's quite a threat. If you make me actually pay for what I consume in your store, I'll take my business elsewhere! You better watch it. I'm not kidding about this. You just lost a non-paying customer, you SOB!
Also, if you don't like people stealing your content, you'd better block Google. They display their own ads next to your content!
Finally, ads are not just on content sites. Amazon.com has ads, which I block. I spent like $3000 at Amazon last year. If they block me because I'm not viewing their ads, that's $3000 in tangible revenue down the toilet, all so they could make 30 cents on some ad views. Needless to say, I doubt Amazon will be banning me for not viewing ads any time soon.