Tsunami: I was thinking along the lines of failing to validate. Give a +1. And then a -1 and change that to another +1. Repeat as necessary.
wpegg: Fair plan then. So you mean rather than creating an exploit, he's exaggerating the current exploit to extreme. I can buy that - nice thinking.
EDIT: - I'll test it tomorrow.
It seems to be something else. I just tried it, and it didn't work.
I'm pretty sure the guy isn't creating 50 accounts and -1ing all his posts to achieve the -666 (he's at -665 currently - someone must have +1ed him) .... that would be sad. So it seems like some exploit is possible.