Okay, I re-read the whole game. Man, this is really hard. I think it's perfectly possible for each of Joth, mcmc, and Scotty to be the SK.
There isn't really a good reason for any of them to be the SK, and I'm worried none of them actually are. I am slightly concerned that it's Axxle, even though Axxle being SK is contradicted by all the actual claim/slot/PR action evidence that I have generally been relying on here. Of course, Axxle is also the one who has argued against me on all that time after time.
Well, this is just a sidebar, since I'm not going to overlook all that evidence.
I have no idea who it is, out of the three suspects. The re-read gave me absolutely nothing. All three were relatively close to meta, exhibited some survivalism, had periods of lurking and periods of activity. I mean, generally speaking, these are the three least active people from Day 1, and here they are.
My case on Joth is so thin it's barely a case... it's basically, he's been trying harder, he's had a little more self-awareness. He brought up the SK sooner than anyone else, as well. It's less than nothing, but I don't know what else to do.
Vote: Jotheonah