Major Disadvantage of Sporrang Hangers/Suspenders (from kilt belt buckle area)?

[OC Richard]

I've not worn hangers, but I see them often at Highland Games, and it seems to me that with certain men it allows the kilt to hang better that it would bound round by the traditional full sporran belt.

I'm for anything that allows the kilt to hang more naturally, and anything that subjects the kilt to less wear.