I'm guessing you use something like w3m or lynx? (if not, I would love to hear about it) The problem is that text-based browsers of that ilk are not user-friendly to the general population.
If you have the knowledge to implement that kind of not-requesting of ads, I bet one of the fringe/experimental browsers (I'm thinking of Vivaldi) would be a great place to implement what you're talking about.
If you have the knowledge to implement that kind of not-requesting of ads, I bet one of the fringe/experimental browsers (I'm thinking of Vivaldi) would be a great place to implement what you're talking about.