2. Even if they did this would be very unreasonable, either you view adverts and the publisher gets paid or you don't view adverts and the publisher doesn't get paid. If you're triggering the pay-out criteria without actually doing whatever is required (view, click, interact) it's just moving the financial hit to the advertiser, which is still unreasonable.
Not my problem. The entire point of HTML is that the server sends files and I have a client that decides how to interpret them. I may be using a browser that is set to display larger fonts for my poor eyesight, or I may be using a mobile browser that decides to use different CSS, or I may be using Lynx that doesn't show images, or I may be using a browser that displays some images and not others based on a blacklist. It's not up to the server to determine.
2. Even if they did this would be very unreasonable, either you view adverts and the publisher gets paid or you don't view adverts and the publisher doesn't get paid. If you're triggering the pay-out criteria without actually doing whatever is required (view, click, interact) it's just moving the financial hit to the advertiser, which is still unreasonable.