I'm no anti-masker, but aren't there legitimate uses for mesh masks? Costumes? Raves? Cosplay? I mean, maybe not during the pandemic, but afterwards? Maybe only the ones display anti-mask messages on them should be banned, and then the other masks that aren't ineffective protection should merely have a warning message displayed to that effect.

You used to be able to buy a "solvent trap" which made the job of cleaning a firearm a lot less messy. But 99% of the people who bought them drilled a few holes and converted them to makeshift silencers. Even though they have a perfectly legitimate use case none of the major online platforms will let you list one for sale.

And now people just use mufflers. I'd imagine banning mesh masks on etsy will have a similar usefulness.

Oil filters

A CoC type clause requiring mesh mask listings to be posted with a “Not a Covid preventative mask” type notice seems like it’d make sense. Idk how the implementation of that requirement would go though.

The issue isn't that buyers think they'll prevent Covid.

The issue is that buyers know they're useless against Covid and buy them to thumb their nose at mask requirements.

Mesh face masks are stupid. But requiring people to wear something with zero formal requirements is also pretty darn stupid.

Contemporary America has the ability to weaponize even bits of cloth in the culture war.