Well, I don't have V4 yet but I thought I would weigh in on this one from a programmer/creators perspective.

As a longtime programmer I'm always pleased to hear what people like about my work.  However it isn't anywhere near as useful to me as hearing what they dislike.

I come from a school of thought where I can't fix it if I don't know what is broken.   So while the tone of some of the criticism about V4 might be a little harsh, if I were part of the Daz development team I'd have somebody in every poser forum I could find taking notes about the things people dislike about V4, so that improvements could be made.

Having worked on some fairly large projects in the past I can tell you from experience that things of this nature are always a compromise, and that first releases always have some shortcomings due to "creative tunnel vision" for lack of a better term.  

I'm sure Daz put a great deal of thought and effort behind getting the figure to bend and move in a realistic fashion, after all, this was always one of the main criticisms behind V3.  However from the reading I've done in doing so I'd imagine that it forced them to make some compromises on V4, which I would imagine probably includes dividing the mesh in different ways to acheive some of the more realistic joint effects (which curiously enough is one of the main criticisms I've heard so far about V4).

So, I would encourage those who dislike V4 to continue to post what they dislike about it, as this sort of discussion is quite helpful to designers and creators who can then address those problem areas.   However I would encourage them to make their criticism more constructive and less vitriolic if possible.

I would encourage those who like V4 to also try to respond to those criticisms in a more constructive fashion, sharing tips on how they have overcome some of those problems or ideas on how to make improvements in those areas.

Just a thought folks, even though I like V3 and use her quite a bit personally I have no emotional investment in the mesh whatsoever.  If someone else prefers A3 or some other mesh to V3 I'm not going to get seriously upset about it.  Same with V4, when I eventually get around to purchasing her, it's just a mesh to me.   Each mesh has it's strong points and it's weak points.

But just imagine how much better V4 can eventually be if you can combine it's strengths with those of other meshes.   That I think should be the goal for both camps - that way everybody wins.

Just my 2 cents worth.