It's an interesting theory and you might have something there. I've always wondered about the point of the site. It always seemed like there was some purpose that went beyond being a tribute.
Wow, some of those things you mentioned, I don't even remember being discussed! I haven't really paid close attention to "could be Andy" appearances in films and TV shows... at least I recall thinking that the screen captures we've seen looked, to me, absolutely nothing at all like him, even if you factor in 20 years of aging.
As for the site, my best answer is "who knows?" But if one were to simply consider the possibilities behind it, you could figure that either:
- the site author is only conjecturing that he survived and, as you suggested, is setting up a web to draw him in;
- the site author really has no idea and is trying to build a case by taking existing information and supplementing it with his thoughts and interpretations of this information;
- the site author has created this mostly out of whole cloth in order to simply advance the legend of Andy Kaufman;
- the site author feels they are "on to something" and are hoping that discussion about it will reveal more information (as one might suppose by posted "evidence" in the form of messages posted since the site was begun);
- the site author has definite personal knowledge of Andy's survival beyond 1984; or...
- the site author is Andy himself, or Bob, or Lynne, or some other "insider" who is leading their audience toward something definitive... maybe even the return of Andy Kaufman.
There could be other possibilities, too. Hard to say when some of the site offers the words of others combined with the author's own statements, along with things that only "could be" evidence, such as the conjecture about the Death Certificate's authenticity. As for that, the doctor who signed it is a real doctor who still practices to this day... I looked up his name not too long ago and his office number is still listed, in Beverly Hills, I believe... he never seems to be mentioned much at all, though. If Andy does somehow show up, this guy got some 'splainin' to do....