Members Facebook Group

It's here - National Autistic Society's Members Facebook Group | Groups | Facebook from what I remember they confirm you are a NAS member when you ask to join.  I keep a passing eye on it but don't use it much as tend to come here more

I'm confused, have never seen any mention of a facebook group for members? Where are you seeing this?

I uninstalled Facebook, and Messenger, from my phone.

Using it on a computer would discipline me, more.

To be honest FB wants to harvest your data and target you with ads anyway, it can be a really toxic place too. Best just use an ad and tracker blocker, decline all unnecessary cookies and use the forum here.