615. There it is - found that can of whoopass I was looking for. (His name's Nick...)

Been around in the background for a while.
611
Never had time to get at run at it.

609.

BTW, if this started from 500 and each user does +2 or -2, how the heck did we reach odd numbers?

605

There have also been a few slip-ups. Someone mistakenly added one, so we were odd, then someone mistakenly subtracted one, so we were even again. Stick around, there will be more mistakes.
By their side, one hopes.