ABP also considers ads that track people (such as Google's) to be acceptable and whitelists them by default.
https://adblockplus.org/en/acceptable-ads#criteria
If you make a modern-looking long-scrolling article that has an ad somewhere in the middle, it's not "acceptable". If you get a crappy CMS that splits every article into 9 pages with an ad at top and bottom, then it is.
The main weird thing is that 3rd-party tracking is "acceptable" (!)
(I recently added some details on the problem to the Aloodo tracking test, because users have started to assume that ad blockers fix everything. http://blog.aloodo.org/posts/adblockers-myths-facts/ )