> And the .Trashes, which always manage to make my camera SD card full even after “deleting” everything.
The trash isn't magic. You delete stuff, it goes into the Trash. The Trash is represented by a ".Trashes" directory on removable media. You can delete it manually or just empty the trash.
My point is: Joe Average takes some photos with his camera, finds that he’s out of space on his SD card, pops it into his MacBook to transfer over a couple of good photos and delete the rest, and when he plugs it back into the camera it’s still full. Finder doesn’t show anything, and neither does the camera’s image review function. I don’t think that looking to empty the Trash is an intuitive next step, since it seems to me that the Trash wouldn’t be on the SD card.
The trash isn't magic. You delete stuff, it goes into the Trash. The Trash is represented by a ".Trashes" directory on removable media. You can delete it manually or just empty the trash.