Little oddities that build up certainly do discredit a leak. Of course they don't disprove it, because that's impossible without some sort of official statement. But the argument that "Don't use oddities and alleged mistakes as proof" is a poor one, because the alternative is just accepting the image as truth.It doesn't discredit the leak though, you don't have evidence on how it's supposed to look so saying "It shouldn't look like that" isn't disproving it.