Using Adblock reeks of hypocrisy to me. "I like the content your site provides, and I like it enough to go to your site, but you choose to pay for your site through ads, which I don't like, so I'm going to block them."
I first thought of this when I used Adblock and I visited Distrowatch and a bunch of images were missing. It turned out that the site owner does things to deliberately mess with the folks who use Adblock with huge block lists. I thought about it and realized he is right. I like Distrowatch, it costs me nothing, yet I'm going to block the ads that support it? Not right.
Yeah a lot of sites have annoying ads. I don't visit them. I used to read the Denver Post's website. It has annoying pop unders. I stopped visiting. I have sent emails to other sites saying "I like your content, your ads are too annoying, so I stopped visiting."
I also pay for websites that have good content that is worth paying for.