Additions to the not-too-formal comment policy:
In general everyone has been doing very well with comments. We are up to 265+ comments. Thank you for your contributions.
Everyone is welcome and encouraged to comment. However, the comment must be pertinent to the thread. And, while you are free to disagree with Tom, if every comment you write is in fundamental disagreement with Tom, there are other websites where your time would be better spent.
Furthermore, comments should be reasonably brief. There are many fine, free weblog services where your long writings can be posted.
UPDATE: Until I get Trackbacks up and running, anyone who posts at greater-than-comment length about one of Tom's posts should feel free to self-link in the comments.