"Yes there are. MI5 and the police are aware of many."
No way out of that one.

Aware of many, but not thousands.
You are falling apart in front of us, and I take no pleasure in it.
You have a demented obsession to catch me out doing bad things.
Good luck with it, but you are charging up a blind alley with this one.
I have never linked "thousands" and "communities" so you are doomed to failure in proving I have.