ouinon, is right, to some degree, but your whole premise is FALSE! It is TAINTED! By older standards do you think ALEX would qualify as autistic? I can tell you I wouldn't. A number of people here wouldn't and, though they DO, they DIDN'T! Some have even been diagnosed both times. I think I am an ASPIE. I understand probably 80% of the related stuff here because I have LIVED it. I KNOW that if the AS diagnosis existed in the 60s here, I would have been diagnosed with it. It DIDN'T exist then though. So I am one guy that is off the radar. Take that in REVERSE though! A person might get tested just before the diagnosis fits, and just after. SAME PERSON! DIAGNOSED!
If not for that though, I could only say that it is because some people appear more accepting now, they don't see it as personal failure, and autistics can seem wierd, but have you seen some of the "NORMAL" people?!?!? YIKES!
Steve