Need for ID cards
There is no problem having to produce ID when one seeks a benefit or having ID as authentication.
Eg: I produce my credit card when when I want credit and a library card when I want to borrow a book.
I do object to being required to prove who I am when all I am doing is exercising my right to be at large.
I think Identity cards should be mandatory for all those who claim to be entitled to ask me who I am.
For myself, I don't need a breathing license.
That raises the question of what constitutes a "benefit".
In a world of fake news and trolling it could surely be useful to have a system of non-repudiation.
"You said it! You can't deny it."
What follows in terms of the duties of forum providers is where it gets complcated.