User blog comment:B214/Talk About What You Want! 2/@comment-24098614-20140706031150/@comment-1359322-20140706112035

You say you understand yet you say nonsense like:

"Issei without perversion means the end of the world might as well take that Sacred Gear away from him because it belongs to the Oppai Dragon because if the girls know about this problem they would probably take him to the hospital for a full checkup because  if he has no perversion then he is seriously ill because that is not Issei."

No one said a thing about Issei losing his pervertedness, only it reduced compared to before. During the start of the series, Issei gets nosebleeds and easily excited and all because back then he still hasn't had that much female exposure, but now that he has experienced it many times, it no longer have any huge effect on him like before, so of course he'll be less perverted. Also if Issei just wants to be a pervert, he can just go around stripping females and rape them.