Dave Winer blogs about what he’d say in a keynote about new web standards. Keep it simple and don’t reinvent the wheel:

Mastodon and Bluesky should support inbound and outbound RSS, and do it really well. Right now they do outbound only, and the implementations are incomplete at covering the functionality they have now, and there needs to be more

Inbound RSS means letting people’s accounts be configured so that their posts are automatically pulled from a location external to the platform. Micro.blog is one of the only platforms that can do this.