I suspect they mean the only person with any kind of “scientific” presentation, and everything after that has been a game of telephone amongst the anti-vax crowd.

That actually was a kind of scam:

https://www.businessinsider.com/mattress-firm-blames-aggressive-expansion-on-own-executives-brokers-2018-9

Yep!

Yep!

Just seconding Plainly Difficult, and Mentour Pilot. Also, I think Kyle Hill’s series on nuclear “disasters” is pretty good. It’s called “Half-life Histories.”