"Adblock Plus will always block annoying ads.
Still, many websites rely on advertising revenues so we want to encourage websites to use plain and unobtrusive advertising instead of flashy banners. That's why the Adblock Plus community has established strict guidelines to identify acceptable ads, and Adblock Plus allows these out of the box. You can always disable this feature if you want to block all ads."
"Adblock Plus will always block annoying ads. Still, many websites rely on advertising revenues so we want to encourage websites to use plain and unobtrusive advertising instead of flashy banners. That's why the Adblock Plus community has established strict guidelines to identify acceptable ads, and Adblock Plus allows these out of the box. You can always disable this feature if you want to block all ads."
Could this be related?
Link to the guidelines: http://adblockplus.org/en/acceptable-ads#criteria
Edit: I just contacted Till Faida about this, will keep this post updated.