Reddit. Otherwise we wouldn’t enjoy using a website with its exact mechanics. We are warped. You see the upvotes and downvotes spreading to all kinds of sites. Lesswrong (nucleus of Hitlerian AI cult insanity) wasn’t satisfied and has two forms of upvotes and downvotes. Every site that implements them agrees the voting is meaningless or not to be taken seriously, but they make it their main aggregation tool.