Farcaster built on Ethereum, and other blockchain-based social media networks use the blockchain for the wrong purpose; the blockchain was designed to solve the "double-spend" problem. It's important to not double spend money and votes, but beyond financial, governance, and token-based access control systems, the blockchain is simply overkill. Social media does not suffer from the "double-spend" problem - if anything, the concept of "going viral" is literally the opposite of preventing a double spend. Social media posts are not scarce and should be "spent" as much as user engagement permits. All that matters is that we can verify the owner/creator of the post, so they receive credit for their contribution (unless they want to remain anon). For this reason, Nostr applications will outgrow Farcaster and other purely blockchain-based social media apps!