It won't mean anything even if he is dead.
We will still continue this endless "war on terror" by killing innocent people abroad and stealing freedoms here.
People will still continue to elect complete and total idiots to positions of power.
Politicians will still take as much money away from us as possible and squander it on the most absurd things in the world.
Who cares if Bin Laden is dead or if it's a conspiracy? The effects will be the same either way. A dead Bin Laden does nothing for us, since Bin Laden has done nothing to us for ten years. All of the problems we have faced have been caused EXCLUSIVELY by our terrible leaders, and those leaders are still here even though Bin Laden is dead.
EDIT: Actually, here is a
really good article about how little the death will probably do for us.