Am I reading this right, that Adblock considers chum boxes acceptable ads? I never really considered it; I have AdBlock Plus installed and have seen way too many of those. Does uBlock Origin block them?
Yes it does. I would recommend ublock origin over Adblock Plus any day. That said, you could also disable “acceptable ads” to get rid of these with Adblock Plus.
I intentionally kept the "Acceptable Ads" feature on for a long time because I am willing to support publishers (just not willing to manually sort the good from the bad), but since they decided that Taboola is a-ok, I turned it off, and at that point, there was no reason to use ABP vs. uBlock.