Stewart said:

You really dont get it do you?

The only reason to do massacres is to get your food production to a level so you can use up the couple hundred days worth of unit speedups then revive the 90% of your fodder at the end.

That is your reason. You must be in the supper negative and unable to speed up troops production. I didn't know that the massacre was that useful. Plus after 1-5 days after BM there is normally a 75% revival. So I guise is possible to increase your army by 200% using the massacre. You will needs lots of sapphires for that, but it will be very economical. 

But that was hamlet, I do hamlets in server 2. I don't coin much there so I need every sapphires I can get to upgrade my walls. 

Last time they had a massacre they did that troop building tournament a few days after it, and the free troop revives from the massacre counted as buying troops for the other tournament, so if you hadn't done them yet you could get a ton of free points.  That was pretty nice :)