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It probably didn't help that at the beginning they said the cloth didn't help, then changed the messaging later on.
IIRC, that initial “don’t use surgical masks” statement was because hospitals were already facing shortages, and a rush on the supply would have caused massive widespread longstanding shortages. Basically, the hospitals needed disposable masks, so the CDC told people not to use disposable masks.
But it was also in that brief time period between surgical masks and reusable cloth masks. So the messaging was basically just “don’t use
disposablemasks” because the “disposable” part was implied because it’s all that was commonly available on the market. Plus cloth masks hadn’t been studied yet. So when cloth masks were proven to work and the CDC started recommending them, the naysayers fell back to that initial messaging from when the cloth masks were unavailable and unproven.Exactly, the messaging from the CDC was perfect and there were no empty promises or misrepresentations based on short term evidence at all. Exactly right, glad we agree on that.
that initial “don’t use surgical masks” statement was because hospitals were already facing shortages, and a rush on the supply would have caused massive widespread longstanding shortages. Basically, the hospitals needed disposable masks, so the CDC told people not to use disposable masks.
That makes it worse that they said/implied masks won't protect you, not better. If CDC public health statements are driven by an intention to manipulate public behavior rather than disseminating the best available info about what is true, that means that those statements are unreliable and can't be trusted, regardless of the good they are hoping to do by trading their long term credibility for temporarily adjusting purchasing habits.
Just because there was an explanation doesn't magically make it acceptable to lie out your ass and give a HUGE boost to conspiracy nuts while one fucking helms the white house...
The messaging could have been clearer but I'll spell it out for the dumb.
Phase 1:
Don't panic buy medical supplies expecting them to protect you. We don't have enough, and frontline healthcare workers need them to protect themselves and others, you don't know how to wear them and they probably don't fit you properly.
Phase 2:
We still don't really have enough medical grade masks but just fyi: any sort of mouth covering will reduce the risk of a contagious person sneezing into the mouth of a vulnerable person. If you have to go out, please wear something over your face. Cotton is better than nothing.
Phase 3:
A tight fitting mask really is best, it limits a contagious person's generation of aerosolized clouds of viruses, and limits a vulnerable person's exposure to clouds of aerosolized viruses.
The problem with messages 1 and 2 is that too many people will not give a shit about other people, and will also assume they can put a mask on correctly. If your goal is to prevent panic buying and hoarding long enough to build an adequate stockpile for medical workers, you probably want to avoid anything that makes those supplies sound superior and valuable.
If I were crafting such a message, I'd say something like this:
"At this time we aren't recommending the use of disposable masks by the general public. For now, those who will be wearing a mask should wear one that's made of tight knit, layered cloth, with a fit that fully encloses the nose and mouth. Cloth masks can be cleaned and reused, and will be easier for most people to wear properly, especially when worn for extended periods of time.
These guidelines reflect our current understanding and will be updated as we learn more."
The way I recall it seeing thing unfold and not really following the political stuff at the time:
CDC said that cloth masks don't stop viruses. You need a medical mask for that, but please don't use those because hospitals need them. That was all true.
In other countries, notably South Korea, almost everyone wore masks, and the numbers showed their effectiveness.
So CDC realized that indeed, if everyone wears one, it greatly reduces transmission of the virus. It doesn't have to be perfect to be efficient.