Make the opponents' goal more expensive than it's worth.
You cannot make friends of your enemies by making enemies of your friends.
A stable movement requries a healthy, reciprocal I.O.U. flow among its participants. Don't keep a careful tally.
Promptly report your action to the one who requested it.
One big reason is better than many little reasons.
In volunteer politics, a builder can build faster than a destroyer can destroy.