What disabled guy thread?
There was a similar thread to this quite recently and there's also one in the disabled students subforum (about people with mobility problems). The answers were generally fairly open minded and positive.
But for many I would imagine it does depend on the disability and considersing the term "disability" is very broad and open to interpretation (any chronic condition that has an effect on your ability to carry out day to day tasks). I would imagine few would think twice about dating someone who has diabetes, epilepsy o many of these chronic medical conditions which are often, certainly not always, well controlled. Mild learning disablities or developmental disorders (dyslexia, dyspraxia) also. The picture will become more complex is the "potential date" had something like Asperger's. Although people with Asperger's are high functioning and are of at least normal intelligence (often above normal) I can appreciate that if the person was severly affected this would put many off. Even if it's just because of the myth that someone with Asperger's, or anyone on the Autistic spectrum, is not capable of feeling love and reciprocating feelings as this really is nonsense. Similarly if the other person had a severe mental illness. Then there's severe visual impairments and mobility problems.
So yes, for many it will depend on the disability. I appreciate that someone, particularly someone who's quite young, doesn't really want to start a relationship with. Although I would look more at the person and individual and also what kind of relationship with that person before. I'm not saying this because I think it's the PC thing to do, I genuinely do feel that way. As someone who, using an open interpretation of disability, may be said to have a couple of disabilities I hope I'd be less prejudiced than many others. But even I may have my doubts and reservations at times.