Different people like different things. netmums suits people who don't like conflict. Who don't like to be disagreed with and who don't like to be challenged.
And that's fine. That's their choice.
I don't like it - and I don't like that mumsnet is going that way too, which it is.
To everything there is a sownside. On here it can get quite rough and you do need to have a thick skin. However, on sickly sweet on the surface forums, you find spiteful and bitchy backgrounds, with nasty PMs flying all over the place. I personally feel that two-facedness is far worse than calling someone a twat right to their face. I don't know about you, but I prefer to know exactly where I stand. I've got my big girl pants on, I can take it. 
But, quite seriously, there are those who can't. It's their personality, and I just think it's best to leave them alone and let them have their forum that suits their needs. It doesn't hurt anyone here in any way if there's a group of people out there who, shock horror, do things differently 