Just do like most of the social media accounts do.
Have algorithms that detect spam? Let users report on accounts being used to spam other users?
Sure, if I'm someone abusing the system, this should be easy to ferret out without having to surrender all your personal information and identifying markers just to make a SOCIAL MEDIA platform free of spam.
I don't know this for a fact, but if I were FB I think I'd be fanatical about verifying real users to prevent people setting up social media PBNs. A holy grail of grey-hat SEO nowadays would be to control large networks of interlinked fake social media accounts, which could be used to promote content artificially. This kind of spam is potentially hard to detect since the networks could be very large and appear organic (to the point, theoretically, of having AI-driven "users" behind each one), so the first line of defence is to identify fake user accounts.
Have algorithms that detect spam? Let users report on accounts being used to spam other users?
Sure, if I'm someone abusing the system, this should be easy to ferret out without having to surrender all your personal information and identifying markers just to make a SOCIAL MEDIA platform free of spam.