USBWriteProtect - Why?

From my previous post, I was still after a read only USB device, or means to control access to that, and on my quest, I came across this program. USBWriteProtect (there were a few variations on the same theme), that promise to write protect my USB drive.

The problem with this software is, you need to run it on the target machine before it would work. So. in the meantime, you'll just get infected... So bloody stupid...

To be fair, there is a use for such software, at organisations where you don't want staff to copy material to and from their USB devices, etc...