Beligerent: Seriously, I thought this game was getting FULL mod support?! I was truly looking forward to seeing the epic quests that players would have been able to make for this game, but now that's not happening? Why?! Why limit the game in such a way when it was a feature the developers themselves said would be a feature of the game?
This could have been the next Skyrim accept a hundred times better because the mod community would actually be focusing on creating awesome content for the Witcher 3 instead of fixing the game. This honestly makes me very disappointed. I thought CD Projekt Red were smarter than this.
I think some difference is apparent between W3 & Skyrim *cough*...;) My allegory might be that W3 is at the top of Mt. Everest, maybe, with Skyrim coming in somewhere around rooftop level...I'd say it is already a far better game than Skyrim modded to the hilt. W3 is probably already 100x better than an unmodded Skyrim, imo. If this is not apparent to you then it looks like you haven't looked very deeply into the W3 game.
Skyrim became a memorable game because of user-mods and expansions...most especially in the venue of graphics, imo. W3 doesn't need that kind of crutch at all--the game is a visual masterpiece as it sits from the developer. I'm not quite sure if mods which "improve" on OOB image quality are actually possible in W3.
Aside from that I am completely baffled as to why you are presumably addressing your complaint to GOG, as if GOG has anything at all to do with the mods that are created or not created for the game. Gog isn't "limiting" anything...;) Gog, being a distributor of the game, and CDPR being the developer of the game, have little to no input on how and when mods are done for the game. Mods, as you know, are created by players who enjoy modding in their free time and are not paid for doing so.
Wanted to edit to add that you also have to remember that CDPR is still actively changing the game--not just through patching but through expansions. The first expansion made some changes over and above the patches through 1.11--the next expansion is said to be a big one, which will also change more code in the game. Makes it difficult atm to do mods that won't break, and so modders are justifiably waiting until the mod base stabilizes a lot more.
Last, W3 was released in May--hasn't been out for a full year, yet. Skyrim shipped four full years ago. Give it some time.
My opinion is, for what it's worth, that the better a game is from the developer the more time-consuming it is to actually make mods that improve on it. Skyrim's graphics were poor when the game shipped in 2011--ergo, it was a much simpler/easier game to improve through mods--than is true of the W3. Again, though, mod support doesn't come from the game's developer or its distributors. Just like mod support for Skyrim did not come from Bethesda or Steam, etc.