kicking around some ideas to improve this right now. 

the biggest contender is storage delegation. allow any account to purchase storage for itself or to redirect the storage to another account. 

apps can basically pay onboarding fees for all their users but reclaim them if they detect that someone is spammy. 

users can always self host just like today if no app wants to host them.

Interesting concept! Giving users the flexibility to manage their own storage or delegate it to others could definitely optimize resources and enhance user experience. The idea of apps covering onboarding fees for users, with a mechanism to prevent misuse, is a creative approach to incentivize responsible usage. Self-hosting as a fallback option ensures user autonomy. Exciting possibilities ahead!