Well, here’s an anecdote for you:
I like short men. Specifically, I like men either my height or shorter. Now, since I’m not a particularly tall woman that’s sort of a small subset of men. I don’t exclude tall men - the second-longest relationship I’ve been in was with a man over six feet tall - but I really didn’t find the height attractive at all. I don’t seek out men who are specifically short, either - no dwarves in my dating history (although I’m probably more likely to date one than the average woman as neither shortness nor disability rules out a potential mate for me). I didn’t troll websites with short men back when I was single (and not just because we didn’t have websites back then) or go to Little People of America conventions. However, all other things being equal I find short guys more attractive than really tall ones.
Now, due to my spouse’s spinda bifida his legs didn’t grow as long as they should have. Based on his upper body proportions he should have been six feet or taller but he’s not, he’s five foot six. Coming from a family of six foot men he does lament his height that never was and views it as a defect and if he could change things he’d definitely want to be six feet. Or taller.
I actually prefer him the height he is.
Now, if tomorrow he woke up with no disability and six feet tall I wouldn’t reject him. I’d still love him. But his physical attractiveness, in my eyes, would be less and not more in that case.
Am I a creep or just someone with an unusual preference? I like a physical attribute he views as a defect. Then again, there are other physical attributes I like in a man that he doesn’t have. (Like someone else said, we all “settle” to one degree or another)
Let’s look at Ambivalid’s Atrophied Leg Girl - she was trolling Facebook for guys in chairs, apparently with that being the primary motive. It wasn’t that she just happened to meet him while going about daily life or introduced by a mutual friend, she was actively hunting guys with atrophied legs. Maybe if she was using a dating service that matched ALG’s with guys in chairs, where both parties were aware of the hunting and what to expect, that might have been OK but really what she was doing was along the lines of a guy demanding to see women’s bra sizes in an inappropriate manner.
Now, back to umkay’s situation - is this a guy who is going through life and by chance encounters someone that scratches his unusual itch, or did he seek her out solely because of the chair? If it’s the former I don’t see a problem. If it’s the latter I do.