I personally don’t see the value. If I’d want to talk about stuff, I don’t want my username associated with, maybe

• the internet is not the right place to have this discussion or
• I wouldn’t want it associated to my account by any means, so would most likely create a burner account.

I also wonder if it wouldn’t make moderation harder?

Psuedo-anonymity like usernames breeds assholes (See: Basically every comment section/reddit/forum.) but actual anonymity breeds super assholes (See: Basically every chan.)

With better meta moderation tools, like slashdot used to have, it would be good

But anonymous posting works already, you did it using a brand new account to post this post.