I like how we have to preface our opinions with this now. I think if you're on HN it's a given at this point.
I would agree with you that there are a lot of stupid people on the site and they will still find away to do something stupid. But I despise harsh regulation and I don't think that's necessarily the solution. However, when the stakes are so high (elections) I think there is something to be said for forcing Facebook to be accountable. Akin to a parent being responsible for a child, you shouldn't let them get into a situation where they can be that badly behaved.