A bad thing about social media is this pattern where a person with expertise starts rebutting bad ideas, and it’s great, but over time it primes them to see everyone who doesn’t hold exactly their opinions as part of a horde of goons with terrible ideas, because that’s who they end up interacting with.

Eventually their online persona is, like, Truth Gladiator. And that’s so much less interesting and important to me than Thoughtful Person With Useful Perspectives.