There's something to it or they wouldn't have shrieked so loud about it. We do have some fairly universal rules of clownworld we sometimes forget. If they go out of their way to discredit something, it is probably inconveniently true.

Having said that, his word, without more, is not credible evidence to me. The only thing he's done to give this legs is make it plausible. We need more in order to reach a conclusion it was probable.