[russianstallian]

You do your kendo and they do theirs. If it is the "perfect men" in your eyes, then why does the fact that they moved their head matter? You stick true to what you want out of kendo, they can stick to their shiai kendo and bob their head, both people get what they want out of the practice, and everyone goes home happy. To each his own, just don't ruin your ideals and do something different, unless you choose to change because your ideals and method of doing kendo change...