An interesting ethical question is who in the supply chain is responsible for the chum content, and how much. Lets assume an ad is an out-right scam of some sor

An interesting ethical question is who in the supply chain is responsible for the chum content, and how much. Lets assume an ad is an out-right scam of some sort. The advertiser is obviously guilty, but is the ad aggregate to blame (outbrain yes, adsense no)? The hosting website? (no, but their reputation should be affected). The CDN (no, and cloudflare's attempt was censorship), The hosting company or the domain registrar or my ISP (no) Maybe the browser itself or the OS or my router (no) or the adblocker failing to block the ad (yes, if it was via acceptable ads). There are many (more) players in the "supply chain" yet we perceive their respective responsibility differently, perhaps arbitrarily. I wrote my gut reactions in parenthesis above, but I can't see a strong rational behind my own sentiments.