Jared Spool rumor

I got wind of the Jared Spool rumor in email discussions with a colleague. It seems that John at WebWord published the rumor on its site. WebWord Comment -- I just caught wind of a very interesting rumor. I heard that Jared Spool was banned from future UPA conferences because he stated that usability should be done by various people during development, not just usability professionals or usability engineers. Can someone confirm or deny this please? Turf wars. Sigh.