“Take the example of desktop web browsers. Let’s face it, unless you’re really slow on the uptake, you’ve outfitted your web browser with an ad blocker. Ha ha, you win! But wait—that means most web ads are only reaching those who are really slow on the uptake. So their dollars are disproportionately important in supporting the content you’re getting ad-free. “Not my problem,” you say. Oh really? Since those people are the only ones financially supporting the content, publishers increasingly are shaping their stories to appeal to them. Eventually, the content you liked—well, didn’t like it enough to pay for it—will be gone.”
http://practicaltypography.com/economics-year-one.html
Great words
But in terms of the ad-blocker it all depends on which one. Some will block bad adverts but keep other ones that stick to a set of rules as to content/pop-upness etc. I don’t mind seeing adverts, I just don’t want the annoying ones. So that way I can still support sites that rely on adverts.