A fairly old question about how we do things on Ask Ubuntu just got closed with the site-specific off-topic close reason that you have on MSE:
This question's topic is only applicable to one specific site in the Stack Exchange Network. Questions on Meta Stack Exchange should relate to features or policies that commonly apply to the network or the software that drives it, within the guidelines defined in the help center. You should ask this question on the meta site where your concern originated.
You've almost certainly been through a process to arrive at that message, but as I've just commented, I think its current incantation encourages something that is really counter productive.
When I asked that question, I wanted external input, fresh eyes, novel thought, different experiences to contribute a solution to a problem that we've been fighting about internally for years. I got some of that and I'm thankful for it.
But this close reason essentially says "Go away. Deal with it on your own."
That isn't helpful. I feel quite strongly that MSE is the venue for stuff like this. And while I can see why you might want to keep drama from other sites spilling over, MSE should be available for sharing ideas and helping a site make itself better.
This message needs tuning.