Beware that in some cases, that's still a net gain for the proprietary vendor: if you weren't able to pay much for, say, Photoshop, better to have you as a Photoshop user who will buy it at some later date, recommend it to your friends, and otherwise participate in the Photoshop using community, rather than, say, learn Gimp on Linux.
This is true, but there are many people who will always pirate no matter what. I know people who pirate everything from Photoshop and Windows to music and movies, not because they /can't/ pay, but because they simply don't want to.
Beware that in some cases, that's still a net gain for the proprietary vendor: if you weren't able to pay much for, say, Photoshop, better to have you as a Photoshop user who will buy it at some later date, recommend it to your friends, and otherwise participate in the Photoshop using community, rather than, say, learn Gimp on Linux.