As for myself, I thought Rockman and Megaman X were the same until somebody told me they're different. There were hundreds of threads made for Mega Man x on gaming sites, especially in gamespot beca multitudes of people wanted him to be included in MVC3/UMVC3 game. Fact is, Mega Man X , who still isn't a playable character had more number of threads made than most of the characters playable on that game. So I really wanted him to be playable but unfortunately, he didn't and just we got another version of him in SFxT.
I eventually became a fan of him and supported for his inclusion. He is the coolest Mega Man character in my opinion.