> Fact is you cannot use these sites realistically without these algorithms. Really? I have my web browsers set up to always clear all cookies (no exceptions)

> Fact is you cannot use these sites realistically without these algorithms. Really? I have my web browsers set up to always clear all cookies (no exceptions) when I close them (and I don't keep them open long). I also use various browser plugins to get rid of other means of tracking as far as possible. And I don't even have a YouTube account to log in to. Still, I use the site often and generally find what I'm looking for. Similar on Amazon, where I have an account, but I only login when I have put things into the cart and actually want to checkout. Until then, again, Amazon knows nothing about me. But I find the things I look for. Oh, and despite being an Amazon customer for 15 years or so, with plenty of buying-history for them to analyze... their recommendations are practically always uninteresting. So I don't think I'm losing out on anything...