47 is a lot to lose in one month, that would drive me up the wall too. I've had the same thing happen and it's not just you, the reposts seem to fall off way faster than they used to. Hang in there, it's a site wide mess right now and not something you're doing wrong.

Wait, tying two ground points together is usually what causes the loop in the first place, not the other way around. When you bond a separate rod to the house ground you can end up with current running through that wire because the two rods sit at different voltages, and that current is what trips stuff. A single rod at the panel can still have issues with old knob and tube wiring though, since those circuits often have no ground of their own. The 2 AM part is strange, makes me wonder if something on a timer was kicking on and pushing that difference over the edge.