> I can only conclude that many scientists are not confident at all with their theories, or they are purportedly cheating. That's really not an insightful conc

> I can only conclude that many scientists are not confident at all with their theories, or they are purportedly cheating. That's really not an insightful conclusion. I think it's rather a question of pride and effort: the code probably needs to be cleaned up before release, and the reward for investing that time is very low (career-wise). Researchers are going to publish their source code when it becomes required by most major journals and conferences.