More list support... nip89 for for client + search apps would be slick but I don't think that's actually a thing yet.

automatic feeds for the accounts that I'm following

Polls. They are great for polling. Native GIFs. Because a gif is better than 1000 words

would be lovely to find a have a bridge to the analog world. For example a meetup map or kinda Snapchat app, but still with respecting privacy. Where you can meet with other nostrichs with the same interest. #askNostr Are there already clients for that?

NIP-99; it's very similar to the long form spec, so it shouldn't be too difficult for the short note clients that do long form already to support.

I’d really like a non-kyc anonymous way to buy bitcoin with AUD.