Things are only worth discussing, if you disagree on them. Everything else is rather dull and repetitive, and offers little room for intellectual advancement.
Discussion
This constant need for harmony, consensus, and agreement is why Nostr tends to be so mind-numbingly dull. People just come here, try to sell stuff, make announcements, fawn on each other, and then leave again. As if this were a train station, rather than a decentralized communications protocol.
Does this cover any need? No. The world did not need another public bulletin board. What an absolute waste of effort.
Writing things that might upset your opponents is the whole damn point. You don't need uncensorability for a group hug. You need it because you are prone to writing things that piss people off.
You don't have to disagree, but you do have to share uncertainty the point of a conversation should be to increase knowledge. It can be shared or it can be a mutual exploration.
Mutual affirmation is the only uninteresting type of conversation, but some people do need it for emotional stability. It just tends to get out of hand.
I don't think Nostr lacks for diverse viewpoints, I think it simply fails to reward voicing those viewpoints. People simply don't engage with ideas that they don't like. Or they will to a point but back out to a shallower depth once their worldview is questioned.
Nostr is a whitelist-system, where you have to go out of your way to see any other npub, so people tend to only see people they generally agree with.
Something like X uses a blacklist-system, where you are regularly confronted by your ideological opponents and simply have to man up and deal with it.
This is a good point, but it is nigh impossible to do a decentralized blacklist system. I think you have to do whitelist but your "global" feed is friends of friends. That way you should get some content you don't expect but not much that is downright criminal.
I love a friendly debate. I wish more people knew how to have a friendly debate with people with whom they strongly disagree. There are more on NOSTR than almost anywhere else. That's one reason I like it.