Still pie-in-the-sky, but I still think we've been low ambition & not had good decentralized-identity-preconditions to begin exploring web-of-trust models. Past behavior is a huge indicator, one we can judge, & which many others will have judged. Trying to filter those other judges, decide what trust anchors we have & what biases to give, is a place where humanity would have a lot of freedom to tweak & explore, if we had these modest adequate technical underpinnings to begin to explore from.
But we just lost a decade to blockchain mania & consensus computing, rather than exploring anything actually genuinely distributed & decentralized & non-consensus. Also worth admitting AI just got good enough to convincingly fake being an online person fairly well, which can potentially massively outperform any attempt at moderation & seeking truth/genuineness that humans might ever make; said explicitly, bad/business-motivated actor's ability to fuck up anything but an ultra-conservative/paranoid web-of-trust has gone up orders of magnitudes in the past couple years.