A common misconception I see in product thinking / suggestions here: just do this thing I as a power user (or someone interested in decentralization) want. 

We're well past that from a growth standpoint. Settings and ethos aren't useful for driving at-scale consumer growth.

The average new user is only interested in sign up or using Farcaster if they believe they will be entertained or make money (likely because a friend told them about it).

You’re right—what power users want ≠ growth.
But JTBD (Jobs to Be Done) tells us “entertainment” and “make money” are just functional jobs. People buy with their emotions. 

People join if they believe:
“This will be worth it—socially, emotionally, or financially.”
The real unlock: show that payoff fast.