The clearest issue with OP’s scenarios is that all the “accusations” portrayed involve cheap talk—thus, they are of no use other than as a pure “sunspot” or coordination mechanism. This is why you want privacy in such a world; there is no real information anyway, so not having “privacy” just makes you more vulnerable! Back in the real world, even the very act of accusing someone may be endowed with enough information that some truthful evidence is actually available to third parties. And this makes it feasible to coordinate around “telling the truth”—though truth-tellers still have to work hard at finding the best feasible signals and screening mechanisms! Yes, “human implies political”—but even useful truth-telling involves playing politics, of a sort. (This is something that the local OB/LW subculture is not always ready to acknowledge, of course. It’s why we have a deeper problem with politics here.)
The clearest issue with OP’s scenarios is that all the “accusations” portrayed involve cheap talk—thus, they are of no use other than as a pure “sunspot” or coordination mechanism. This is why you want privacy in such a world; there is no real information anyway, so not having “privacy” just makes you more vulnerable! Back in the real world, even the very act of accusing someone may be endowed with enough information that some truthful evidence is actually available to third parties. And this makes it feasible to coordinate around “telling the truth”—though truth-tellers still have to work hard at finding the best feasible signals and screening mechanisms! Yes, “human implies political”—but even useful truth-telling involves playing politics, of a sort. (This is something that the local OB/LW subculture is not always ready to acknowledge, of course. It’s why we have a deeper problem with politics here.)