What I find disturbing: the author of Adblock Plus famously went on a rant a long time ago about how people approached him to pay him to do various things with his popular extension, such as change default search engines. He refused, very publically, and bemoaned the likelihood that other extension authors might not.

And then the oxymoronic "Acceptable Ads" happened, and the painfully bad "typo correction" anti-feature (no, I really mean wikimedia, not wikipedia), and now this which ties into the "typo correction" bits. All of which are either on by default or pester the user to turn them on. And every one of these creates a new support issue for me with people I set up Adblock Plus for.