an easy yes - their input can be really helpful, and anyone who wants to understand autism better is ok by me. also most of the NTs are here to learn more about their children who have autism. it's an important resource for them.
and a bit off topic, but i do think it would be nice if:
- there were ASD specialists reading our posts and giving their input as well
- the diagnostic categories were more distinct (i.e. diagnosed Asperger's; self-diagnosed; PDD-NOS; HFA; LFA; NT; not sure, and "other" in which you could specify what else)
- diagnosis shows alongside your posts, with your screen name and location (and how about age? not month & day, but just year? right now you either expose your whole birthday or nothing).
just a thought.
i don't know if anyone else does this, but i am constantly looking at people's profiles to see their DX status, not to discriminate, but because i am interested in the variation in character, skills, interests, learning style, and emotional understanding of people on the spectrum. and i'm interested in how people of different ages cope with their autism, and how receiving a diagnosis at different times in one's life affects their understanding of themselves.
of course this could just be me wanting to design everything to suit my own needs .. 
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