There was a period of time, when ad blockers were first taking off (as other ad platforms got steadily more invasive), where the prevailing guidance among communities I was in at the time was that whether you chose to block ads or not, you should definitely make an exception for your favorite webcomics, because they were either on Project Wonderful or the then-nascent Hiveworks, and their ads didn't suck.
(Hiveworks's ads still don't suck, but they're more of a closed intra-network thing—like the webrings people keep bringing up—rather than a more general advertising platform.)
