That is created by apps offering the same 50 nostr-celebrities to new users in onboarding and IMHO the biggest issue where nostr currently lacks: the user/profile discovery.
Generally I don't think it's a bad idea to have "trending posts" but the way it is currently done is very biased.
We need ...
- trending hashtags
- trending users (nostr.band is doing a good job with this)
- a focus on topics and communties
One thing is clear: The larger nostr grows, the better tools we need to see what is going on inside and outside of our bubble.
