Reddit just shows one score on the post, it doesn’t show the exact upvote/downvote number. It’s easy to just say “Well everyone else voted this up/down, so I guess I will to”, it encourages group think, by design it’s meant to be an echo chamber.
Imagine you have a divisive opinion, at the end of an hour you have 9 upvotes and 11 downvotes, so it’s at negative one. You’re gonna think you’re being ignored, and others will think you’re unpopular and just downvote you not reading it because it’s “What the group is doing”