Ahh, no, so not what I meant.
I was talking about my rant in my journal last night.
All the same, I wouldn't not give a person a shot because they had a certain trait that was conventionally "unattractive."  Everyone has traits like this, I myself am made up almost entirely of unattractive traits.  Hence the rant.  Sometimes when we focus on the details, we miss the big picture.  I've known a lot of people whom I have found to be extremely attractive in their oddness.  For example, I once dated a guy with a really big nose.  I made it a point to not discount this person as a potential mate because I found this quality odd.  And as it turns out, I started to kind of like his nose, because I liked the person, and having it had given him more character because of the obvious ridicule he had faced growing up.  He had a sense of humour about it, and I found that extraordinarily attractive.
I guess I'm sort of bothered by the fact that the OP says nothing about a mate, or a partner, just "a person."  It may have been intended that way, but that's not how it was worded.  And I've met a lot of people in my time who will only have friends and acquaintances who fit a certain standard of attractiveness (not that most of them would admit to it, but a few have).
I don't think there's anything wrong with having preferences.  I just wouldn't discount an entire person based on one or two features, because people are so much more than that, and really, given a chance, anybody can surprise you.  There are qualities that I find attractive, but I'm not going to limit the dating pool like "singled out" because it isn't fair, to me or to them.  
Hopefully that made more sense?