I have no desire to attach my social media activities to my IRL identity. I've seen people attacked and get fired for having strong political beliefs. I myself will not visit businesses whose owners have been vocally supportive of certain viewpoints. So I will not participate anywhere that requires verifiable identity, and I think it will be stifling to the point of losing any value. Plus, I'll be honest, I've been around long enough that I've given voice to thoughts that were immature or ignorant or enraged and I'm damn glad I don't have to defend myself on a daily basis and even happier that they aren't associated with my IRL identity.

There are ways to establish an identity without personally identifying information, such as how Mastodon verifies that you have control over a domain. That's as far as I'm willing to go.