By the same token, I could release an episode of Expedition Sasquatch that is all rights reserved, or an ES novel that is all rights reserved without violating the license on the CC-BY-SA episodes, because I am the original author.
But I probably won't, because that's not my goal.
My goal is to provide a platform upon which other creatives can produce new material without enriching a distant billionaire.
I would love for someone to make a lot of money on the back of one of my creative projects, even if I personally don't.
Because, if someone else makes money from something I couldn't, while actively allowing full remixing and free re-distribution of their creative work *and* linking back to the thing I produced that they remixed, that means they've brought something to the table that I couldn't bring, and they've earned that money.
That's great. The fact that I got to play a role in that is great. And the fact that, so long as they continue to be successful, more people will continue to find the thing I produced that inspired them, is great.