You also seem to know what's best for the server... So, I have a proposal: rejoin the team so you can fix it yourself (cuz you're making it seem like you're the only one who knows what the problem is), or, stop bashing them.
That's not sarcastic. I'm dead serious. If you
sincerely believe the server is plummeting because you left, come back. You were somewhat okay as a Community Manager, so why not do it again? Life shouldn't matter, either, as staff should dedicate ALL of it, 24/7/365. Hey, at least I knew when to quot yappin'