How the hell did that even happen?
Yeah, so, um, embarrassing.
After theory posted that log, I was curious if there was a bug or exploit or something (it's a year old, but I didn't remember fixing anything along those lines), so I wrote to the player and asked him, and while I waited for him to reply I went reading through that section of the code.
Anyway, bdhcompany was cool about it, that game was apparently a joke he was playing on his co-workers. And it's fixed now, so this shouldn't be possible any longer.
No, I'm not going to do anything about past games. If anyone was using it regularly, I guess we'll see a precipitous fall on the leaderboard soon...