I agree that Lemmy (+ Reddit and other forums) by design are for anonymous accounts.
At the same time, things like Twitter / Facebook/ Instagram are more for personally identifiable accounts. I want to see photos from my friends on Instagram, not random people. I get the random people photos on Reddit/Lemmy
It’s different use cases. I use my real name on Mastodon and PixelFed, and I use this account on Lemmy.