I have no idea how you could even do this reliably, big streamers alone could sway things unfairly.

The issue too is that you get a lot of clueless people who don't even play what they're complaining about and have an extremely limited understanding ( or none at all ) of it.
MNK discussions is a good example of this... It's so clear that a very large group of people who talk about MNK both here and on the subreddit don't play it and they'll often even admit to it or that they've just tested it a bit.
And yet they have VERY deeply rooted opinions and ideas about how it '' should '' play that go completely against what active MNK mains want.

This is just one example, but this applies to pretty much everything else too.