Resource fork et al deletion with usb stick drives

I know there are lots of discussions about 'extra files' not used by other operating systems (such as resource forks and .Trashes and .DS_Stores and spotlight files and and whatever) so I hope this doesn't bore people but....
I use a usb stick a lot, mostly to share data cross-platform. I want to get rid of the unusable files to make my colleagues' life easier and unclog my life. I know I prevent some of them over network connections, but that is only some of them, and that is only over network connections.
I can't disable the creation of these using the method that applies to network connections (Article: HT1629).
Can I just go to terminal and go:
cd /Volumes/USBStick
rm -fr .*
This is seeming to work. I get an error about not being able to delete the . file and the .. file, but it happily goes ahead and gets rid of the rest.
Seeing that it appears to work, can I dispense with paying for BlueHarvest (at least for my situation)? Or have I inadvertently destroyed essential data and should expect imminent falling of the sky upon my head?
thanks all,
diddles.

Definitely a yawn here. As your wonderful machine is the source of this important data that's transferred over to that 'other' platform, convince your colleague that his life will be easier still if he buys a Mac. Thereafter, the invisible files will be just that.
An expensive solution, but I think a good one.

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