Then that is not GREE's fault and therefor there shouldn't be any complaints, that is the Guild's leaders fault. They should be able to figure out that if war is constantly being declared, then you tell your guild that his hour is the one we will participate in and the next our is the one we won't participate in. If you have enough common sense to figure that out then you won't be losing any points at all and instead have even more points by the end of the event.
It is considered constant warfare though since your guild is, by definition in the game, at war and never out of it. I made it quite clear that you shouldn't just try to participate in them all just because they are going, that's like driving in a NASCAR race without taking any pit stops.