Yeah, I don't see how they will make it Google-searchable since it has gone private. Early on I would send friends/family links to specific threads that I thought would interest them. But then it went private and everyone had to sign in to see anything. I don't think that your average Google searcher is going to create a sign on just on the offhand chance that maybe that Google hit might have useful information.
I realize they were trying to keep better track of who was coming and going, but IMHO it was better as a public forum that only required you to sign in if you wanted to post.