Opensource software is best.
Using a comment callback function in WordPress 2.7, I was trying to customize the threaded comments and ran into a problem. So I left a comment on Jeremy’s blog. He contacted me and was able to find the problem and provide a fix. His post has been updated with that small change and it’s all good.
Very cool, you can’t get that kind of response from any software company. I’ll keep playing around with the comment format, but now I can implement anything I like and take full advantage of the threaded comment feature.