You are so passionate about this issue, that you have gathered all of these links without making an edit to OSM first! Very impressive 
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In the OSM World Discord people often use the support vote and oppose vote reactions to signify whether or not they agree with something, would be a perfect fit for this forum also.
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Thumbs up and down broadly fit that use I think?
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In theory, but I think most people perceive 
on its own to be a little gentler than when 
appears by itself without a 
beside it. Incidentally, Slack users often seem to use 
to mean “me too”, not just “I like that”.
A thumbs down seems a bit more loaded, I’d personally rather see an oppose vote than a thumbs down when people disagree with me. But obviously this is very subjective.
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