I know how you feel. There is a group on Cubits that I've participated in for years. It was comforting and familiar. Now we are making our way finding a new home on NGA. For me it isn't that much of a learning curve because I have also been on NGA for years, but others in the group are having an adjustment. Change is hard. I've always hated change too.

At this point I'm archiving what I can of things I wanted to save from Cubits down to my local computer so that it isn't lost to me forever. A lot of memories and I think of all those dialog posts as a journal of my life.

I know
My sister and I have communicated on there for 10+years
so it is like loosing letters from a family member

My son is computer savvy and is saving my cubit to his server.
so I will have an archive.

I'm so glad your son is saving things for you so that you still can look back on all those years of correspondence with your sister.