Yes, 'naysaying' is so tedious, isn't it, glasnost? you really don't take well to anyone pointing out you're wrong, like the simple fact you hadn't bothered to read the article you posted a link to through to the end.
I think the fact that you'd like to censor who is allowed to post on mumsnet tells us all we need to know about the kind of open, fair society you believe in.
Maybe you aren't aware, but mumsnet has not yet turned into the kiond of totalitarian dictatorship you fantasise about, and anyone - yes, even those who dare to disagree with you
- are still alllowed to post.