search engines that use logged in accounts to help mold searches for you. They could then take the total data of all the user's input to give a general trend to everyone. It would need some sort of down vote spamming/brigading correction/prevention which I'm sure would be possible given that Reddit does it to some effect.
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Maybe the ads and clicks are so cheap they can't make any money with just one thing, so it takes a whole host of them to make things work. It's kinda like phone and e-mail scams, the message is so cheap they don't lose any money but if they just get one sucker it pays for annoying hundreds of thousands...
more - The downvote / "useless" tagging could still work on...- Erik_, Tue May 31 2022 1:20am
"Forces act when not restrained" - Puckdropper