wow, thanks :)
also, based on how many tips a person gets we could tell if the answer is reputable or not, a good way to build a solid reputation
To make it a bit more sybil proof, couple with "how many tips received by people in my web of trust" and let user choose how to configure additional reputable fact checking sources
Fact checking is already a business, so it could translate to on-chain quite easily, awarding tokens to mark calculated degree of accuracy of certain items of information
Who fact checks the fact checkers? Well, other fact checkers ;-)