Isn't an "anyone can play attitude" part of an image or style? I'm not saying grunge didn't have an image, I just think there was and still is a lot of emphasis on a certain kind of image in punk music. it doesn't really matter tho lol. do agree the poster is ignoring some things in creating a narrative he agrees with
Your last point is what my argument ultimately is. The way he made it sound, alternative music was born in 91 with Nevermind. Maybe grunge brought in alternative music as the major commercial force in music but it was hardly the first genre to come as a reaction to the popular music of the time.