I'm not sure we have stopped using flash, judging by the pile of USB sticks on my desk :) In relation to the fs analogy if you used a flash drive that you know corrupted your data, you'd throw it away for one you know works.

I once purchased a bunch of flash drives from Google’s online swag store and just unplugging them was often enough to put then in a state where they claimed to be 8MB devices and nothing I wrote to them was ever possible to read back in my limited tests. I stopped using those fast.