About a quarter of the communities here have 0 posts in them. We're going to start pruning the 0-post comms in the next couple of days. If you have a comm with 0 posts that you want to keep alive, please make an on-topic post in it. Otherwise you're going to lose it.
I still have a couple of communities that have 0 posts. Right now, I'm busy editing the community info by order (from oldest to the newest community) and also contributing. Thanks for this warning. I will try to create some posts on that communities