I'm surprised to hear that 3rd wave ska was used to sell anything, including 3rd wave ska.
The following is just a thought that came to me from reading the last couple of pages. It's a bit of a rambling non sequitur:
The oft cited ex nihilo appearance of the 90s alternative scene* does a disservice to those that came before. Without, at least, punk & post-punk grunge would never have happened. Likewise, without a bunch of other games, DnD would never have happened. Art doesn't happen in a vacuum, there are always influences.
We can of course argue about what we think are the precise amounts any one thing influenced another. Being ENWorld there will of course be loads of that. And that's a fun pass time, I'm not knocking it. But I'll say the precise details are going to be unknowable. Even a given artist would probably not be able to list all the influences on their art. Many of them would be subconscious.
So, er, anyway, that was my TED Talk. As an aside, am I the only one who thinks TED Talks lack the gravitas they once had?
*I don't know what serious music critics are saying, but certainly the people I knew back in the day thought this.