ManBearPig
half man half bearpig
We all know and acknowledge that Eminem came up with the song Stan and that it was a huge hit. Nobody is disputing that. But Eminem did not start calling obsessed people stans.
I've been around these message boards since before nasbbs and don't recall anyone using the word referring to an obsessed person. I'm not saying it didn't happen but Nas is who made it popular in the way we use it today.
So yes. Obviously without the song Nas could not refer to it, but without Nas the word wouldn't be used today.
People were calling people Stans before ether was ever out and nobody thinks about Nas when they say Stan in 2017.