robomagon: I would hope that only the ones who are interested in this type of game. The last thing we need is people buying games just for the achievements. That'll just discourage GOG from picking up titles that don't have them.
I commented on this because whenever a very GOG friendly publisher like THQ Nordic releases something on GOG, there's somebody that comments GOG's release is inferior to STEAM's because it lacks achievements. For me achievements have zero value, but clearly that's not true for all. My only interest was whether those complaining about achievements are actually jumping on deals such as this, or they're just venting, and looking for excuses to justify not buying on GOG.
I seriously doubt GOG would ever make a decision such as not accepting a game because it lacks achievements. In fact, up until now most games on GOG were accepted solely based on the quality of the game. Some stinkers made their way here, but the vast majority are indeed good games.