Most people here seem to think that one clicks ads only by accident. If this were true such clicks would never lead to a purchase or just associate a brand with annoyance. I simply can't believe that. Sure, mostly, I see ads for stuff I have just purchased, sometimes for months but there also have been useful ones from time to time for me (mostly home automation/Raspberry Pi stuff), also my brain seems wired not to i…
Personally, I've never discovered anything specifically from an ad worth purchasing, but I have found interesting things to purchase after an advert inspired me to research a topic further. Frankly, your comment reads as someone whose livelihood depends on advertising.
Well, according to the numbers SF people do click ads from time to time. I just can't imagine all ad clicks to be by accident and so by definition not all ads are useless. So maybe HN-ers that never click ads and always ignore them, do miss out.