And there is one very ground rule too that is a limitation of system — from my point of view anyway. Likes don’t tell how usefull or ”right” a comment/answer is. Likes tell how much popularity it got. Totally different thing. We are very deep in thinking where triljon of flies can’t be wrong and only those users, who have competense high enough, click like-button. And that’s not the situation.
And that’s why likes should not be part of trust level, reactions are better solution for topics/posts and amount of likes can not be used as a metric telling if an answer is good, bad or even right.
So, I think the right answer here is not building system that sort answers per amount of likes (unless topic is a popularity content), but using solutions like Discourse Solved as JammyDodger offered.l