Warez groups crack games. It's not necessarily them who distributes the game. You could see it as they provide the tools for criminals to make their stolen games work, yes.
But the idea that GOG could use (or are using) the same tools seems quite "cheap" to me. I want to support game developers as much as the next guy here on GOG, and I will continue to do so, but I wouldn't mind if GOG/publishers wouldn't take these kinds of shortcuts to make their selling product, as it's still a business.
So Warez groups should be considered.... like sportsmen? Doing it just for the challenge?
This would only apply if they wouldn't publish their work (probably needed as "proof"). I can't break into a bank and claim that I didn't do anything wrong because I didn't stole anything and just wanted to beat their security, putting the blame on the guys following me to take on that opportunity.
Second point is, that (even if it was done so as mentioned) nobody knows WHO did it. So be careful where you're pointing with that finger at.
Last but not least: a lot of the "regulars" posting on codex have rather.... strange.... views on what's right and what not. Mostly they're just hilarious.