THERE ARE NO REWARDS FOR RUNNING A HUB

Not now, not in the future. 

It will only cost you money.

Controversial opinion but farcaster protocol will eventually need a token:
1) As a stake for hub operators (to prevent sybil attack)
2) To incentivize data storage (ensure there is a client-agnostic protocol infra)
3) To manage the lease of channel names and such.

That is *if* farcaster becomes large and decentralized. I appreciate the app-first approach of the team but hope that things will gradually decentralize. Otherwise, there is no need to bother.