Earlier quoted context omitted.
> I'll also point out that some people don't like to believe that there can be global media conspiracies, even though there are (cf. "masks don't work unless you're a trained medical professional" propaganda at the beginning). That's not a conspiracy, that's just common shared knowledge.
> "masks don't work unless you're a trained medical professional" Putting aside the phrasing, which I take to be something like "unless you follow procedures and have new masks often etc". In the beginning this was the narrative because there was a shortage of masks, or because of plain ignorance. Masks are not perfect, but they were effective, which is why they are still mandatory in some contexts. If one can ignore…
Maybe I missed something, but I don't remember ever hearing "masks don't work unless you're a medical professional" (outside of later revisionist accounts by the right-wing "COVID isn't real and this is all a vast conspiracy" crowd); I mostly remember hearing "initial findings show that masks seem to be effective, but supplies are so short that we should ensure that our medical responders have access to them, so please don't go out and panic-buy them like you've been doing with toilet paper."