Yeah, I guess we all learned to write-protect the floppies the hard way... When you lose data you become a bit more paranoid about making mistakes. Fortunatelly floppies could be protected with a bit of tape.
I never understood why you would ever write-protect a floppy. Then again, I had a Mac 512k with a single floppy drive. (Insert Disk A; CRANK WHIRR GRIND SPIT; Insert Disk B; WHIRR WHIRR CRANK GRIND SPIT; Insert Disk A...)
Or rather, without a bit of tape. Tape was for writing, that's why many commercial disks shipped with the window permanently open.
You are thinking of 3.5" floppies. They are speaking of 5.25" floppies. They are the opposite.
Oh huh, those were before my time so I didn't know that, thanks.