As someone with congenital anosmia, NO. Not always. In fact, of the people I've discussed this with (more than you might think) we would like a heads up.
Anosmics usually bathe a few times a day in order to prevent something they can't sense, just in case.
As for me.. y'all are judging people on some magical plane that has no bearing on our lives.. like if I were blind and you said I looked too RED.. wtf? I still can't understand how a "bad smell" could really be as horrific as people say it is. I guess it must be since everyone insists it is, but.. really, I get detailed to clean litter boxes, take out old garbage, etc. Doesn't bother me. I think you smelling people are a little hysterical sometimes. :)
I care more what a person does than how he smells, but I guess I can afford to!