Yeah, I'm just diagnosing problems for now. But actions can be obvious from it - for example, implementing topical channels or feeds could greatly help with diversity (of topics and respective people). I'm sure there are a lot of ways to improve this.

Topical feeds and channels exist, both as communities & DVM. Both are somewhat supported in Amethyst. Flotilla.social is a community oriented client. Curated user lists based on various criteria are available at following.space and included in many clients.

"topical channels or feeds" Which leads us to hashtags, which leads us right back to Mostr, because any time you do a hashtag search for anything that's not #bitcoin or maybe #plandemic, you get nothing but Mostr posts. Then users interact with these posts thinking they're talking to real people on Nostr, which they aren't. I'll say it again: either fix the bridges, or put a big sign on them saying "out of order" 🚧⛔🚧