I think Facebook was the first big social media platform to absolutely insist on real names, tying online profiles to real-life identities. Now we see how dangerous this is. If I recall correctly, they gave justifications like combating disinfo and spam, but it must be obvious to most people in retrospect the purpose was to build dossiers on people for the purposes of targeted advertising, manipulation and censorship. We need to roll this paradigm back. Everyone should go back to using pseudonyms and handles, preferably multiple ones.