This is discussion archived from a time before the current discussion method was installed.
"In recent weeks, it has been rumored that the show is going out of its way to ban contestants who have appeared on versions not hosted by Sajak. The reason? Because the producers don't want them sharing stories about their original appearance."
I call BS. You can only be on the show once, so of course they're not going to book someone who's been on another version — but not out of old shame.