If there was a way to disable it, that'd be fine. But I don't know of a good way to implement such a feature in the context of this forum. It's another one of those things where it'd be a lot of extra work for twicker to very little benefit.
Maybe it could solve the problem of new people not formatting their code.
The problem of new people not formatting their code is the mostly the problem of new people not using code tags and an automatic formatter wouldn't help that at all.