Stack Overflow works so well because it has users from loads of different programming languages. By merging the Blender proposal with the CG Artists proposal, we can get more experts and more momentum. It seems that Blender would be a great tag for the CG site.
Shall we merge proposals?
Although I accepted MidnightLightning's answer, I really like AbrahamVanHelpsing's answer as well. Please read both answers and vote on the one that you think is the best course of action.
It seems that the majority is now predominantly for Blender as its own site (myself included). Unless there's another shift, I'm going to accept AbrahamVanHelpsing's answer
I agree with @Christofian . Blender is so much more than just a CG suite. Consider the game engine for one. The ability to produce stand-alone apps for another. Would scripting BGE be considered on-topic on a CG proposal? or would it be diverted to GameProgramming.stack? I think Blender definitely has enough differing characteristics to make it a sister site instead of lumping it in.
Since StackExchange questions can be tagged, I'd be in favor of this merge: It would allow one site that has generic 3D tutorials ("What's the difference between an icosphere and UV sphere" that's currently in the Blender proposed questions could apply to (nearly) any 3D package), and software-specific questions with a tag for that software. People who are just Blender users can just browse that tag's page for specific info.
Let us not forget that Blender is not just a 3D modeller. It's not just limited to the game engine either. Remember that Blender has a renderer of its own, its own video editor, text editor, etc. Blender is like an all in one solution, and such things should be dealt with more specifically. This is why Ask Ubuntu is successful for example. It focuses on one platform and does it well, so users get answers quickly and good answers at that.
If Blender's questions get pushed into a general CG site, then we would face some challenges in getting good clear answers quickly, and it would be all to easy to lose yourself among all the other CG suites.
As the creator of the blender proposal, I don't think that this is a good idea. In order for a proposal to work, it needs to gain traction and activity. With sites like stack overflow, and CG artists, in order to gain activity, you need to get activity from users of all the major programs. With our blender proposal, we're just have to attract users of one software, which makes the site a lot easier to promote.
I think this question is strongly correlated with the audience we want to have. People that just are 3d-Artists are probably better off on the CG site.
BUT I don't think a blender user is just a user, he/she always is a developer too. I believe a lot of people are always trying out the newest features and report back to developers. And even if they don't code themselves they still are a part of the developement process
And I think it is not suitable to have a site where you always have to define the application you use und in the case of blender the version as well. (you would need a tag like [blender 2.64a]). I would feel offtopic if I were to ask blender specific questions in a general CG site.
I agree. Also all 3D modelling software should be merged. I have created http://area51.stackexchange.com/proposals/46377/virtuality proposal, but I agree that all should be one. It's a pity that no modelling section exist on SE. Modelling questions are highly criticized on main StackOverflow since they are not programming ones.
A general modeling site would be too confusing and as pointed out above, simple questions related to scripting and the user interface might be lost in the mass of questions related to other packages, mel, *zbrush, 3ds max plugins etc.. :/ Blender is a powerful suite to itself and can be sustained by the community with questions regarding it and it only. With addition of improved modeling tools, tracking and masking and an improved compositor, a q&a site dedicated to it would make alot of sense and be an ease from irc and lengthy threads in forums.