I think the anonymity issues is pretty small to be honest. I am not worried about recognition.
But, I think the "like" button goes beyond that. Mumsnet wants to be "with the cool guys", they want to be part of this whole social media hype. But it seems not to have realized that mumsnet, facebook and twitter, and linkedin, etc, serve very different purposes. Yes, they all have potential for serious amounts of users looking interchangably on mumsnet, facebook, adding traffic here and there, and getting impressions on ads, which is vital, etc. And people do use them both, often at the same time.
But Facebook, is limited to certain people you chose to be friends with, and it is all reciprocal. Twitter is a whole bunch of bots and bods, following, following eachother, dropping off, etc. You speak, and you have no idea who is listening, or not. It is a on ongoing stream of people with something to say, and you barely bother pay attention.
And mumsnet? What is mumsnet? Does it want to be a cascade of users shouting into the Ether, not knowing wheter anybody is listening?
Or does it want to be a clique of people who chat and sometimes follow and comment?
Or does it want to be a forum where people meet and talk and discuss, and where the media is so interested in what mumsnetters have to say that they scoop stories from here? Where politicians and chefs come to chat and answer questions.
What IS mumsnet?
The moment you start randomly posting threads to your facebook, and in this way invite YOUR select group of friends to comment in private on your various walls, in the same way as they link youtube videos and news, it is a different ballgame. I dont WANT my serious issues with my primary childs problems become entertainment of Facebook, in the same vein as a youtube clip or a funny picture.
The moment Mumsnet is telling me that THIS is what our threads are, then we need to think carefully whether this is a place we want to be. I find it patronizing and belittling.
Everything is now Entertainment.
The era started by Big Brother, where you study the microcosmos of the individual, and blog, and make pod casts, and post on the internet for advice, has maybe eaten itself now.