Uh? The link was the teen angst bit, not the commercial bit.
Besides, they are a commercial band nowadays (the fact that Cobain's said to be the top earner of all dead celebs kinda suggests that
). That, and their music can hardly be described as metal (although you might like to do that they didn't invent Grunge either....they just brought it to the fore of popular music. In a sense, they made Grunge commercial.
)