Not sure thisnis the best way tonhelpnbut my response would have been that nostr isnonly an echo chamber if you only follow those that agree with you. There's plenty of opposing opinions on here.

Nostr reimagines the internet and online social communications so it is what you make of it. If you come at it expecting an echo chamber, then an echo chamber is what youll get. Because we have no algos, my personal experience on here is unique to me and only to me.