I dunno, either.
Having had a continuously expanding condition of vitiligo since the age of 15, I am fairly sure that some have ruled me out for it. It is the appearance of small, white, tanless skin patches, usually on dark-skinned people. They grow slowly in size over the years, and although not harmful, contagious, or
different in texture from regular skin, they can appear quite strange, especially during the tanning season, when the surrounding dark skin contrasts sharply with them. Now in my 50's, I am practically all white except for a few remaining irregular dark splotches on my lower legs that I hope will soon turn white as well, just for uniformity's sake.
I have only heard a few careless remarks on this condition over the years from children and immature people, i.e., "What's wrong with you?", "I thought you had the mange or something.", etc. Many don't seem to care, but who knows? It used to be visible on my hands and face when spreading there in my teens and 20's, and I had some dating experiences with guys that lasted 5 years, a few months, etc. But I have a pretty nice body and cock (not outstanding, mind you), mixed with a kind, humorous, slightly self-deprecating personality that appeals to a few but not to many.
Now the remaining dark spots on my legs can be easily covered with long pants, and I haven't sensed people that I have dated wanting to dump me after viewing the full monty. (Yes, my dick is also WHITE; so much so you can barely make out the circumcision scar).
But even with all this, the appearance of rough, scaly skin to a large degree might turn me off, I just "dunno". I have stuck with partners who had rotting teeth (one for 7 years) because I loved them, and could easily overlook the imperfection. Interestingly, most of my partners have had dark, smooth skin with few blemishes, so I still consider myself unqualified to say yes or no.