If you are well organized, it is a healthy trait. no one would say you are "on the OCD spectrum".. but when that trait gets out of hand we would say you have OCD, and likely would be diagnosed as such.
I see (autism) ASD and ADHD as much the same way. Most people diagnosed with it who are high functioning dont really have it at all. It is just a personality trait and all in all a positive one. high-functioning ASD are just people without social hangups, good. And people with ADHD who are high-functioning are largely just amazing multi-taskers.
The harm in putting people on a spectrum is they see themselves asa diseased, broken, something that needs "consideration.. they arent, in most cases in the right proportions these "diseases" are in fact just super powers, things more people should wisht hey have really.
@freemo maybe calling them super powers is a bit too much but i'd argue that those traits have had evolutionary advantage for the group - just like people without them were also filling a required role.
if they had as negative consequences as they can have in our current society, like attention "disorders" in school, these traits wouldn't have survived for this long.