It would be interesting to see a social media platform emerge where instead of a real name policy there was a metadata policy where each post contains the IP/User-Agent/etc... for utmost transparency and validation by parties viewing the site. It would be a DDOS/security nightmare but for a relevant example check out congress-edits https://twitter.com/congressedits
Problem with this kind of identity system is that bad actors will keep anonymous and then conduct attacks on the people who dare to speak their minds.
This kind of platform would remote bots/trolls to some extent, but it would also put everyone who disagrees with the status quo at risk. Which in turn would stifle free speech and people would either not dare to speak against issues or keep that speech elsewhere.
It worked for congressmen because they’re more or less honest, they don’t know much about computers, and because the’re using work PCs and networks managed by people who know a lot about computers.
Propagandists like IRA will use Tor/VPN/clouds/botnets to spoof IPs, virtualization/modified web browsers to spoof user agents, etc…