If a site could be certain to show only ads that do not track me, that the site operators actually are comfortable endorsing (i.e. not some targeted ad system where the site owners have no control over what ads I see), then I would consider not blocking their ads.

This is effectively a matter of social breakdown. I wouldn't bother blocking ads if they were few, privacy-respecting, responsible, etc. But, tragedy of the commons and all, shitty ad-pushers and privacy-invaders ruined the game. Now, sorry to say, this hurts others who try to be more respectful. Not their fault, but that's how the world goes sometimes.

I agree with that sentiment, and indeed maybe I would browse without an ad-blocker as well if the costs could be lowered, but that's not really what my argument is about. I'm making no claims as to how feasible it is to browser without an ad-blocker, but on the moral and ethical implications of browsing with an ad-blocker. I don't think it's right to pre-judge all sites based on prior experiences with some sites, and to then resort to an unfair exchange for goods and services. I do it, you do it, but I still don't think it's right. That said, the (small) amount that it's wrong and the level of inconvenience (or worse) that ads cause leaves be unwilling to change my behavior and stop using an ad-blocker. That said, I still recognize the unfairness, I try not to justify my actions post-facto.

Yeah, I used to think it was wrong to drive past the speed limit even if everyone else was. I hate when functional rules and norms break down. But you know, we live in the real world. It's not wrong to drive the speed of traffic and be safe, and it's not wrong to try to find the best and most sensible way to support things you care about, have a positive impact on the world, and take measures for yourself to protect your privacy and sanity.

If everyone used an ad-blocker, it would change the way the market works. It would actually reduce overhead where advertisers are fighting for attention in a noisy world. It would restructure how the flow of money works. We'd figure out other and better ways to deal with funding things.

So, I don't think it is wrong to use an ad-blocker. I think it is socially responsible. Even when other people fail to use adblockers, it gives more power to the advertising industry, and thus hurts society. I say: Thank you for doing your part and using an adblocker!