First off, I get it if it’s a fresh community and you don’t have anything yet. But if you’re community is over an hour old and has nothing on it… Why would I join it?
If you want your community to grow, post content as soon as possible, after it’s been created. Otherwise, you’re missing out on potential subscriptions and posters.
ALSO
If you find a community you like and subscribe to, post something! That’s the best way for it to grow and for you to see new content from it. Nobody wants to be the only poster in a community.
You can apply to take over ownership of dormant communities… You have to go ask, and I’ve seen it done… I’ve just forgotten where you ask.