Re: He's mostly right
While I applaud your rational and thoughtful comment, this bit needs examination.
There are many territories where expressing an opinion, or reporting a crime, can be very dangerous indeed. There must be some route for anonymous expression. It need not be easy, or generally-available (think penet.fi, of old), but it does need to exist.
There's another layer, where a comment can be anonymous, but traceable (you may not know or care who 'strum' is, but Theregister does - and could identify me, if I did something naughty).
Finally, in an anon-free world, there would still be sockpuppets and fake posters; who is going to check each and every logon for a real person? It may be that the price paid is not worth the value extracted.