Well ok I choose to use them but I'am also forced to use them if I want play certain games or on the other hand I am not able to play those games without them. I never bought a game on Uplay the only games I have there are from Steam activations and bundles. Origin is nearly the same with the only exception that I bought Battlefield 4 and this Robot Shooter game.

But that's the whole point. By not buying games which push DRM on you, you indicate your choice of DRM-free gaming and also deprive them of your money. And if you supply them with your money, you perpetuate what they do. I.e. consider it a form of voting. You get what you choose.

Many people before you have made thread after thread about the same question.

The answer is always never.

American AAA game developers worship DRM.

You have much better chances of seeing AAA games be put in a humble bundle with 10 other games and sold for less than $11 for steam rather than seeing them on gog.

You raise some pretty good points.

I'm a living example of how DRM doesn't work.

Since Steam appeared on the market I had to pirate every Steam game, because I was feeling that Valve's client was being forced upon me.
Since GOG appeared I've stopped pirating games. I wait for GOG's games to be on promotion and I buy them.
And, to be honest, I don't even bother to pirate Steam's games anymore. I have enough GOG games as it is.

Fact is: no form of DRM will ever prevent pirates from distributing the games.
The only reasonable policy is for publishers to trust the customers and sell their games at reasonable and honest prices.

I always use an old example to prove that most publishers have (had?) bad intentions:
In the old days (80's - early 90's) people would complain that videogames were too expensive. The software houses would justify the price by saying that game piracy was responsible for the steep prices.
If piracy was banned (they'd say) then the videogame prices would lower.

When the first CD games appeared it was very difficult to find pirate CD games. CD writers were too expensive and I think we can say that during 2 years (1993, 1994?) there was a very low rate of pirated CD-Rom games.
Was the price of games lowered? NO! It remained the same.

Except that, this time, the software houses would justify the price by giving the excuse of production values: CD burning, digitised voices, 3D intros, etc.

When a company plays dirty with its customers, then don't expect any love back.

Only legacy publishers. Developers usually are more sane people. And there are sane publishers as well. Example: https://en.wikipedia.org/wiki/Devolver_Digital

(Many games published by Devolver Digitial are here on GOG).

The problem is: Big publishers like Electronic Arts or UbiSoft tend to have their very own ruleset or begin struggle down the distribution platform until it fits their vision. What do you think happens to GOG if they think of distributing through here? We would have also UPlay and other nice and comfy addons within the installations. I say it again: No big publisher needed here until they have no further problems with the principles here.

The major chunk of CDPR profit comes from retail. I was quite surprised about it, in this day and age. You'd expect retail to be nearly dead, right? Surely not at 75% of sales 8|

See http://www.dsogaming.com/news/the-witcher-3-wild-hunt-30-of-sales-coming-from-the-pc-75-of-total-sales-from-retail/

Then why we don't see many of them on GOG?

Crooked reasons. Consider such scenario:

1. Publisher runs after mass market and makes a bad product that sells poorly (because it's bad).
2. Publishing execs start pointing fingers and say "It's all pirates that take away all our sales! But we aren't sitting idle, we put this DRM in place!". I.e. they use DRM to cover their incompetence in producing good art (of course they know perfectly well that DRM doesn't stop piracy in any way).

As you can see, such people neither care about more profits, nor about any piracy. They care about covering their mistakes.

And it's just one of the crooked reasons why DRM can be used. Others aren't any better (lock-in, standards poisoning and so on).

Hmmm... I imagine most of those are console sales.

May be, they didn't break them per platform. I'm not sure why they are so stuck in using retail sales still. Unless it's a chilling effect of DRM (like some would prefer to buy video disks, since they actually can tangibly back them up, unlike all the digital DRMed video sales).

Integrated Steam Workshop. Just keeping saying that over and over in your head. Eventually the answer will reveal itself through a wall of code and mysterious symbols.

I doubt it has anything to do with why some publishers don't distribute on GOG.

Then you haven't repeated the phrase enough in your head. Soon the pyramid and the eagle will appear and whisper gentle nothings in your ear.