That's one crappy game people shouldn't be buying anyway.
But no, there is no Steam piracy. There are wholly illegal Steam server networks, but that's awesome.. unsupported, unpatched, half-ass networks for people too poor to buy a game on a sale day.. no thanks.
Like I said, Steams piracy preventions are not only DRM but also convenience and ease of use. I'm sure piracy is way down from the days before Steam.
Umm.... every game on steam has been pirated....
And actually, piracy is up since before steam. Keep trying though.