People who aren't good curator won't be whether or not there is the slider so it wouldn't have made sense not to add the slider from most everyone.

This will solved the voting on comments problems. There's so many comments I'd like to upvote for 1-2 cent and I feel like these could add up if everyone did this. Surely everyone will have an incentive to upvote the best comments on their own posts and this would surely lead to more meaningful conversation.