> Can I self-host my P2? Not at the moment, but we plan to offer this option in the future.

Yea - I see it as weird too. The only reason I'm still an advocate for WordPress are the self-host-ability/full customization aspects. Otherwise, you're just another Medium that's going to take my data and use it against me.

Honestly, I wouldn't touch this until Automattic publishes the code. To a old-timer who's been leveraging WP for well over a decade: ew.