Earlier quoted context omitted.
I’d love to see two types of upvotes on the site. One for “thanks for answering/engaging” and another for “this answer is correct and high quality”. Not sure how you’d restrict or verify the votes, but I think the issue you’re pointing out is a result of only having one metric of engagement.
Slashdot solved it more than twenty years ago.
Slashdot was in many ways way ahead of their time. I think Reddit (and even HN) could benefit from this kind of check/balance.