Absolutely.
To the ad complainers: why would Andrew and Ben devote their lives to a web site if they didn’t expect to make money on it? Web sites cost money to run. There are server costs, design and development costs, plus a huge amount of time has to be invested. Unless they have some VC money, how are they supposed to keep this site afloat without ads?
I agree that the advertising on some sites is obnoxious to say the least. But, if you are visiting a web site and blocking the ads, you are breaking your part of the social contract. I don’t want to call it stealing, but its….stealing.