Hey Arthur.
As Rod said, a few years ago a few interested locals discussed it, but none of us really wanted to get tied up in the politics and formal structure of an astronomy society. We didn't really have the time or inclination to do it like that.
So we continued with our informal monthly observing sessions, for Central Coast locals, as well as our visitors from Sydney and Newcastle areas.
For all of the other things, like catching up, chatting, asking questions, share and enjoy each others company etc, is all done here on IceInSpace, as well as the other star parties around NSW each year.
The beauty of the informal observing sessions is that everyone who is there, wants to be there and wants to be there to observe, or join in the good company and friendly banter.
2.5 years ago I didn't know a single person on the Central Coast that was into Astronomy - now there's a group of 6-20 of us (not just from central coast) who meet up at Kulnura each month and it's such a great, friendly time. There's probably about 20 members of IceInSpace who are from the Central Coast as well.. there's more out there than I imagined