ForgottenPr0digy said:
Why is transgender porn so popular? How can a guy who looks like a girl considered by some folks on the internet hot and wanna have sex with that person? Does having sex with a pre-transgender male considered gay??
I think this really has to do with anonymity, and not so much of "why is it so popular?". On the internet, you're whoever you want to be. Sure, Google or any other site can get info on you from your searches, but even so how far they're willing to go or able to go with that information is limited, so there's still a level of anonymity.
It's most likely popular because some people really are just attracted to "shemales" or "trannies" or whatever term you'd like to use. Just in public, not many will be outspoken about it.
It's kind of like the issue with homosexuality in America. Some studies have been done that make it appear as if only 2% of the United States is homosexual, but in actuality, that number is most likely far higher. Why though? Because many that are gay aren't willing to admit it, or they're in an area where they fear there will be some backlash for their sexuality.