You can take the stance that DRM is a good thing if it's protecting creators' rights and doesn't get in the way of consumers using the product. I'd argue that most creators take this stance, because they want to get paid for the stuff they made so they can turn around and make more stuff.
Or you can take the stance that "DRM can't be good", because reasons. This is the stance that a lot of people take who don't create (or who aren't paying the bills by creating).
Personally I'm somewhere in the middle, but I see the validity of both sides. Creators want to get paid, and consumers don't want to be told how/when to use the things they own. Being anti-BAD-DRM is taking that middle ground, and in terms of Steam they're doing it pretty well.