I see no reason not to. If someone were to post photos, and a rival of theirs saw their condition, would it make any difference as to how the placings went had they not seen the photos? If anything, if probably drives the competition forward- at least I would hope it would.
I'm for it. I like when people post the photos, even with the element of surprise being taken away from the stage come contest day. But I still think when someone disrobes backstage, after photos being posted, it can still have an effect that will mess with peoples minds- really the only reason I think people don't want to post photos aside from getting ripped on.