OK, I have heard you loud and clear, the comments suck in SubText and on Geekswithblogs.net. I agree, but I don't have near as many problems with people being able to comment as others do. This leads me to believe the problems lay in two places, the skins or the custom HTML code fields.
Most of the time when I am debugging a blogger with comment problems they are due to some javascript they have embedded into the news section of their blog. However, this is a problem so we need to get it fixed so I need you (bloggers and readers) to comment and if you can't get it to work on the various blogs and skins, email a screenshot of the error to support@geekswithblogs.com.