Absolutely not worth it. People like Joel Spolsky, DHH, or the UX guy from Zappos, can be counted on not to put effort into figuring out how to post. Cutting expert casual commenters out of HN is a huge concession to the trolls.

I'm asking for us not to freak out about them, and just let the site do its job. Don't comment. Just mod down and, as was pointed out upthread, flag. Make it not worth it for them.