It is unfortunate, but I think it's a bit melodramatic to keep harping on the "regimental" aspect of it. You seem to be trying to make this into an anti-regimental crusade.

Let's face it: moths will attack wool whether it has these bodily secretions on it or not. I could show you a million examples of moth damage on portions of wool garments that are not in direct contact with skin. So the issue here is not so much that one shouldn't go regimental if he wants... it's more about keeping the kilt properly stored where moths can't destroy it.

In other words, going regimental doesn't cause moth damage. It just focuses moth damage on one particular area. Using the correct avoidance techniques will prevent moth damage, no matter how you wear your kilt.