Setrack, what the hell was the point of that post? There's no consensus that Stealth Rock shouldn't be banned. A lot of people have already said that it's a suspect. (See the poll results.) That's why I asked for proof that Stealth Rock shouldn't be looked at for a ban; there's plenty of evidence to the contrary.
Testing a metagame without stealth rock to test whether or not it's broken?
We clearly can't agree one way or another on this; that's why we should test it. If everyone thought it was broken, then it would have been banned by now. If everyone thought it wasn't broken, then we wouldn't be having this discussion.
BTW, that example is flawed. There is always a way to prove that someone has or doesn't have a baseball on their person. (though it wouldn't be generally socially acceptable to do at any time) Ownership is usually another story, though.