Comment by echelon
It'd be cool if you had to pay a certain amount of money to publish any message.
And then if you could verify you'd paid it in a completely P2P decentralized fashion.
I'm not a crypto fan, but I'd appreciate a message graph where high signal messages "burned" or "donated money" to be flagged for attention.
I'd also like it if my attention were paid for by those wishing to have it, but that's a separate problem.
it's pure waste-generation, but hashcash is a fairly old strategy for this, and it's one of the foundations of Bitcoin. there's no "proof of payment to any beneficial recipient", sadly, but it does throttle high-volume spammers pretty effectively.