Kevin,
I appreciate your post.
I hope the other posters will understand, I don't have issue with people commenting on how to improve code. As long as they understand the requirements. It needs to be a function, it is very simple math expression, etc. So when someone suggests that I use exec, or I am not follow mathmatical precedence, it is not really helpful, etc. I suppose I really should have stated more strongly in the article that I did not include precedence and other such things.
I wish that when people post their comments, that they do it with a touch of humility instead of pridefulness and an air of "I am going to teach somebody something.".
I think we need more humility in the DBA community.
Ben