While I would be inclined to think that
Tony Attwood's
statement reflects a "negative" stereotype, I also thing the posts in this discussion have backed up the general point:
It isn't that NT or AS bathe more or less, but I bet if you ask most NT's how often they bathe, the answer will be about how often "people are suppossed" to bathe, rather than about, as here, how often is rational AND rational to what ends (consideration for others sensual pleasure, self, and health).
I might also add that it might take a pubescent AS longer to figure this stuff out because they aren't picking up the "you smell" body language or subtle hints, shifting body language, for example - like when your great aunt gets you a basket of soaps or some Ax body-spray of something. Apparantly SHE is the one being polite here, when she could have just said, "hey, did you know that during puberty you hormones do wacky things to your body, and sometimes you smell bad and you can't smell it? Interesting isn't it? Same with not brushing your teeth. People appreciate if you try to keep from smelling up shared spaces..."
By the way, my teeth as cavity free and all there and I brush for special occassions -- my gums are another matter. They bleed and plead with me not to neglect them so whenever I do brush. Other factors are pretty crucial too -- like how dry is your mouth... But yeah, I think N.America has a bit of an oral obsession I am disinterested in catching.
I found the key is deoderant, (not anti-perspirant - why!! !!??? would you want to stop sweating!! !??), and not necessarily bathing beyond a dip in the lake or a splash under a shower head, unless you have the luxury and just like a nice hot bath for three hours every day.
Oh yeah, I think that any time that you point at a difference as a pattern in a certain group compared to another, there is a generalization or essentialization that is necessarily inacurate unless it is a tautology. The important thing is what USE the generalization serves, and who it serves. In this case, it was nice to discuss something that might be causing social friction in some of our lives or might at some point... and I do think that non-conformity could get translated into perceptions of rudeness about hygene, if the person that is not conforming is not conforming to surrounding expectations of "normal" hygene routines.
I already know a good number of people will not date me if they know or discover that I brush my teeth as rarely as I do, and mayeb a few enviro-Nazi's that would be really sickened by how many bathes I take...