Deserves to be emphasized. If anyone living in that area does not wish to be hung from the nearest (Israeli & US Paid for) lamp post, they don't breathe a word about politics. We remember how the people were in Iraq under Saddam, the situation in Gaza is even worse because it's on such a small scale. Everyone probably knows everyone and word gets around quick. And all it takes is a rumor to get you your brains running out the back of your head into the gutter.
I believe the term used is collaborator for anyone who is seen as being cooperative.