It's always an "optional feature" - but the app is closed source. Also, given that the blockers don't have the sophistication level that you'd expect from say,

It's always an "optional feature" - but the app is closed source. Also, given that the blockers don't have the sophistication level that you'd expect from say, µBlock, where you can just click on something annoying and banish it, is that ad being displayed because the ad company is giving backhanders to the developer, or was it just missed in the filter? Who knows? Ad blocking software having "acceptable ads" is identical to antivirus software having "acceptable viruses". Ooh, I just reread the article. The company trying to convince blocking software to do this is the outfit behind the original Adblock Plus, the original people who started this practice.