Just my two cents' worth...I sometimes worry that I have it too, but while there are similarities between SA and AS, there are also subtle differences that observers might not pick up on. I've noticed a lot of us on the forum either have OCD or just have our little obsessions and phases we go through; in my case this comes in part from just not having much of a social life and just trying to fill the void with something. A lot of us also call ourselves "social retards" and that might just come from being out of practice rather than really not understanding cues such as prosody and body language. I sometimes think I have problems "reading" facial expressions, but really, it's probably just my "negative filter" making me anxious, not that I genuinely can't decipher what a raised eyebrow or an unfortunately-timed blink might mean.
Of course, I have read that a lot of people with AS often feel socially anxious, so it always helps to investigate, I suppose! There is hope for people with Asperger's; I'm studying speech pathology, as some of you might know, and there are some good social skills training techniques out there for improving communication, even subtle things that you might not think make a huge difference, like eye contact. Anyway, now I'm starting to sound like one of those spammers rather than a fellow SAer, so I'll stop!