It's quite incredible how much you can learn about a person just by knowing their user agent, country of origin and list of preferred languages. When Youtube s

It's quite incredible how much you can learn about a person just by knowing their user agent, country of origin and list of preferred languages. When Youtube still supported trends, visiting the trends page from Poland with Safari set to English gave you really interesting results. Mostly intellectually-stimulating content from channels like Veritasium, with a smattering of reviews, trailers, music and focus soundtracks thrown in. Meanwhile, visiting that same page on (Windows) Chrome set to Polish gave you the typical "you won't believe what this man just did!!!" crap.