Voted 'yes,' but much less so than your average ad-blocker. I blacklist rather than whitelist, which is probably the opposite behavior of most people with blockers.

I want to support sites that I consume content from, so by default I only block tracking beacons, not ads. I turn on content-blocking (or disable plug-ins/javascript) for specific sites when their ads make the site unusable. For example, nfl.com text articles used to not load for ages while video content loaded (it got better), and currently having the SF Chronicle open in one tab will make youtube stutter in other tabs.