Lil B isn't a mastermind, I don't understand the folks in here acting like he's some sort of genius. You have a music that's rooted in the hood, the hood's majority being black and latino, the black and latino (at least old school) being conservative when it comes to sexuality, etc. meaning they don't support homosexuality, especially male homosexuality. So Lil B, hanging around white hipster types appropriating culture that dominates in white youth circles (and only a few years ago making it's way over to blacks via dipset, Lil Wayne, Pharell, etc.) picks up on their style, "freedom", comedy all of that. And at the right time injects that shit into rap, it's just that he went all the way with it.
I've heard hipster rap groups talk about the gayest shit in their music etc., say way off the wall shit, have pen and pixel ironic music covers (there's hipster mufuckas who auction of old southern pen and pixel covers the gaudiest ugliest shit gettin the most money), and so on but no one gave a fuck (took them seriously) because they were hipsters and white.Now Lil B supposed ex-goon with credibility with the young black rap fan does it and changes the context and the seriousness of it.
It's like if a muslim terrorist blows some shit up we're like "fuckin muslim always blowin shit up," but when a Christian terrorist does the same we are shocked, but the shit been happening all the time. So, to me the nigga is not a genius, he took some shit that's been out here to the limit with the right skin tone, background and music. He is a risk taker though, because even though black rappers have been takin alot from white culture recently, certain things they wouldn't do because niggas wouldn't go that far, Lil B said all gas no brakes...
TL;DR
Lil B swagger jacked white hipsters and niggas thinkin he's a genius cause they just listen to 90's rap. The End.