AdBlocker Plus has a shady aspect. It's not so much that allow ads through (via their Acceptable Ads program), but that they take a cut estimated to be 30% of the publisher's revenue in exchange for whitelisting their site.

Personally, I'm really uncomfortable with that. It's documented on their site, but there was also a NYT article about it:

https://www.nytimes.com/2016/09/19/business/media/adblock-plus-created-to-protect-users-from-ads-opens-the-door.html

I switched to one of the alternatives (uBlock Origin) for that reason.