I'd bet renaming Warpcast to Farcaster would have a non-trivial impact on growth.

1. Improved onboarding conversion due to reduced confusion
2. The name is just better
3. One name instead of two names is gud

Putting the vibes based perspective (Farcaster is simply better) to the side for a moment.

It's probably hard to understate the impact on new user acquisition and general conversion rate for new users.

Any % improvements gained compounds greatly over time and impacts overall growth. And it comes for basically free.

Counterpoint: if a user can't search "farcaster" and find the warpcast app naturally through navigation/exploration then they may be a very low quality user.