By definition, most political problem don’t have a clear/unique good solution. You want to build more housing ? But how do you do-it ? Even on pretty technical topic like fire-safety, where do you set the balance between blocking various industries with heavy procedure and ignoring all safety practices for the sake of efficiency ?. Look at topic like tobacco and drugs ? Do you want to ban them because it’s unhealthy ? Or allow them on the name of personal freedom ? Depending who look at the questions, it’s going to change a lot.
A thing I learned on that other site starting with a R is that Up/Down votes aren’t rational you can get a lot of votes for a one line joke not answering the question, and get downvoted for a long argumented paragraph without anybody telling you wha’t s wrong. So I tend to not care about votes.
Indeed, I don’t get why upvotes are public, but downvotes are hidden unless you have some admin rights on an instance.