I've never actually used Facebook so I haven't seen the effects of only upvoting. But up/downvoting is not meant to signal agreement or disagreement anyway. It'

I've never actually used Facebook so I haven't seen the effects of only upvoting. But up/downvoting is not meant to signal agreement or disagreement anyway. It's meant to signal whether it's a useful post or not. But people treat it as the former which is why it creates echo chambers. I think the Facebook "upvote" is meant to signal agreement. Does it also make the post go to the top?