Because Will had explicitly threatened to use sockpuppets for various purposes, he could have used them to manipulate the poll, too. Therefore I vote by means of this comment. The vote: ban him. Reasons:
By the way, this is the first time I endorse banning someone from an internet discussion forum.
I disagree with a ban.
Thank you for your cooperation and understanding. Don't worry, there won't be future posts like this, so you don't have to delete my LessWrong account, and anyway I could make another, and another.
But since you've dared to read this far:
Credibility. Should you maximize it, or minimize it? Have I made an error?
Discuss.
Don't be shallow, don't just consider the obvious points. Consider that I've thought about this for many, many hours, and that you don't have any privileged information. Whence our disagreement, if one exists?