Farcaster is taking a hybrid approach, storing user identities onchain, while data like public posts, follows, reactions and more are stored offchain.
Users have to "pay rent" to Farcaster to store their data - as of now, that's about $7 worth of ETH for 5,000 posts.
On the social front, one key feature for Farcaster is its individual channels for specific topics.
The Frames feature allows developers to share the apps they've built atop Farcaster as individual posts.
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