I block web advertisements. You can't stop me, and nothing you say will convince me to stop. If your business model requires that every viewer watch advertisements, then you need to design your web site to enforce that requirement. It's your problem, not mine. Calling me a thief is just obscuring the fact that your web site is poorly designed and doesn't do what you want it to do.

Also, end-users do pay for bandwidth, contrary to your statement above. In fact, many users on the Internet do not have unlimited bandwidth, and pay as they go. The people who happen to have "unlimited" bandwidth connections are also paying for bandwidth -- it's not like the 'unlimited' part is free. I pay my ISP for bandwidth, and they provide it to me. It's not free to them, and it's not free to me.