What are some good ideas in consumer crypto that didn't work because they were ahead of their time (not because they were fundamentally wrong)?

I'll start: TCRs for curation (across verticals)

investing & writing about consumer tech since 2016. FID #30. hosting /web2web3 

https://www.lisnewsletter.com/

Social tokens
Prediction markets
Steemit
Stepn

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What's the why now for prediction markets?

Prediction markets, not as a betting platform, but as a social primitive. Where every post is actually a prediction, and real world and onchain data score a user

Prediction markets, not as a betting platform, but as a social primitive. Where every post is actually a prediction, and real world and onchain data score a user 

https://warpcast.com/0xdesigner.eth/0x34b324a2