It's not really a private member's club. It is a temporary rallying point for those of us who are already here to give a bit of handhold to those arriving. who feel they need to leave their online community in order to stop the site owner closing the entire site.
I appreciate that the thread title is confusing but it is the name of the thread that we were all corralled into (more widely known as the thread of hate by those who never bloody read the thing)
Maybe @mumsnet could add "lifeboat from the" at the start of the title.