Yup, caterpillar has struck incessantly today. At first I thought it might be that the AFK detection was just too aggressive, but that theory didn't hold up when it kept kicking us out of the game mid-action while doing a strike (Devil's Lair, half a dozen disconnects, the most fun one right before the loot/xp drop). Since it's way too many countries and too many systems, it's safe to say the cause is to be found server side. Not sure what optimization Bungie introduced, but it's either breaking by itself or the creatures of the night are nibbling on the walls of reality again.