tokisto: I´m with Amok.
As posted by Lifthrasil at this topic:
http://www.gog.com/forum/general/to_giveaway_or_not_to_giveaway/page1 "The whole DRM-free policy ONLY works on a code-of-honour base."
If we can keep breaking this reliable relation, this one could not continue in DRM free. Maybe HB will take procedures to put some DRM. And here is where GOG enters. Again, is a reliable relation. If GOG feels that not worth anymore putting DRM free games on sale, they could change the whole thing. And personally, I suspect that HB is not pleased with what have been happening, because the Steam keys costs a significant amount to them.
EDIT: Ninja´ed by Lifthrasil!
Randalator: There are many ways for HB to address the issue on their own.
– Don't give out individual keys That's what they used to do and gave up. They knew very well why people wanted individual keys and yet they obliged. It's a bit two-faced to go "Yeah, we know that you want individual keys so that you can give unneeded ones to others. So here you go but please don't give them to others.". To be able to pass on individual keys is precisely the reason why people wanted them in the first place. If you don't want individual keys passed on, don't provide individual keys. It's that simple.
– Make customers choose between DRM free and a single bundle Steam key Another big "problem" are customers who are content with the DRM free download and pass on their Steam keys. Again, very easy to solve on the side of HB: Don't give out two for the price of one. DRM free OR Steam bundle key, not both. There, problem solved. No more gifting unused Steam keys. And all without brow-beating or guilt-tripping third parties into enforcing your TOS that you seem unbothered to enforce yourself.
And that's not even touching the logistical nightmare that is checking every single Steam key offered on GOG for a potential HB origin.
So, what you're advocating is that Humble Bundle start treating their customers as people who can't be trusted. But isn't that the kind of behavior DRM-free proponents speak up against?