Moss activity generates around 7 millions screens a month , I have no way to host them ( btw it’s trying to do that which killed the ACs you’re mentioning).
So yes a shadow post would bust some morons but on another hand I have no way to force platforms use upload rules I would set.
The current system is the most efficient and has the lowest cost for everybody:
– the zip exists , it cant be altered and anyone can read it
the platform decides when the file is required or optional and set its rules around it
it’s just a matter to have the rules enforced , or not ….