It's a stereotype that stems from the stereotype that all gy men are effeminate, very emotional, etc. So some may be. The majority probably arent. As far as I know it isnt a huge subculture within the gy community and thus just statistically speaking, there shouldnt necessarily be more g*y males who dress that particular way than there are in the general public.
Its just a stereotype...bisexual people come in all different shapes, sizes, colors, and social groups.
ok thank you i was just onedering have a great a day :)