> Losing anonymity means losing protections for actually vulnerable people. The shittiest people are often the ones with the most secure positions in society.

Case in point - Google forcibly merging Google+ comments into Youtube comments.

It didn't end trolling or harassment on the platform at all... people were are are perfectly willing to be vile under their real names, but it did expose a lot of people's personal information and real names to that cesspool against their will.

Also, Usenet. A lot of people posted with headers including their real name or an email containing their real name, yet it wasn't exactly a bastion of civility because of it.