You omitted the most important reason why blocking is necessary: malicious and deceptive ads. I want to check a story by my local newspaper. I don't have my ph

You omitted the most important reason why blocking is necessary: malicious and deceptive ads. I want to check a story by my local newspaper. I don't have my phone handy so I borrow the nearest work computer that isn't typically used for web browsing. I open an incognito window and go to the website, click on the article, and read through it. I leave the page open while I go back to work. Sometime while I'm not paying attention one of the many ads on the page refreshed because when I turned back instead of the newspaper I see a full-screen message that my computer has been "hacked". There's an pseudo-unclosable alert box warning me not to turn off the computer and to call "Microsoft" at some phone number. This computer didn't have speakers attached, but if it did I suspect they would have been making noise or using text-to-speech to read the fake warning. This is a daily occurrence for thousands of unwitting computer users. You can't blame the victim by saying they were doing anything to make themselves vulnerable. I saw this happen on a continuously patched and vulnerability-scanned Windows 10, running the most up-to-date chrome. While visiting the website of a mainstream web site operated by a major newspaper syndicate. I put the responsibility to stop this on the ad networks, and the site operators who partner with them. Until you can guarantee that none of the ads you serve are malicious or deceptive, I'm blocking everything and denying your revenue stream.