I really liked the idea of blockchain verification of ad delivery. Also the article really does a good job of conveying the latest developments happening in online advertising world and role of blockchain in it. As for your question of adblocks, I never use them. Mostly because I appreciate their role in making the internet as we see today. Without ad revenues, most sites coould never have existed. So I personally think we should not use ad blocks, except may be on mobile, but just because of annoying pop-up ads.