SimonG: Try selling a GOG game to a private person. After it is done, we can continue this discussion.
"DRM-free" is a marketing trick. When
people talk about DRM-free games, they are almost always interested in the ability to back up a game, play and install it without an internet connection.
Copyright is at least three centuries old, and "digital" is at least 40 years old. But the term "DRM" is new, therefore it is quite appropriate that it only applies to a subset of rights management practices, rather than everything from the start of a digital era, much like an abacus is not a "computer".
So when you say that account-based licensing is DRM, you are arguing in favor of a particular literal interpretation of the term that the majority of people aren't using (which is even more disingenuous than arguing about dictionary definitions, because at least *that* is based on common usage). Which is to say, you don't like GOG's marketing trick (by which they are fooling exactly no one, because, again, they are using the common definition of DRM-free, unlike, say, indiegamestand). You're no better than people complaining about X.99 prices.
Regardless, account-binding licensing is awesome. Screw resales. Resales hurt the best games much more than they hurt the turds.