Should I Out the Troll?

I received a nasty comment from a reader yesterday afternoon. I don't know who the person is, but I think it might do the person some good for them to realize that anonymity is not absolute. I'm tempted to post the Sitemeter log entry corresponding to the visitor, which was the only hit at the time that the comment was posted, but that might be too retaliatory. I've opened up a poll in the sidebar that will remain open until the 3rd. Let me know what you think.