Would you mind not labelling large groups of people ("the Linux crowd") and tagging them all with some opinion that you've come up with? I don't know if you read the KDE blogs, but it actually is all about "how freaking awesome it is and hot damn do you need to try this out", and we all know what that attitude has done for the project's reputation.
Those of us who actually use stuff like Kubuntu and other GNU/Linux distributions are aware of the problem that a lot of active development focuses on making yet more stuff instead of finishing the existing stuff off. Before I became tired of doing so (and before KDE 3 was thrown overboard) I filed a few bugs on various things, and years later I still get e-mails from the paper-trail around those still unfixed bugs, presumably rebased into a KDE 4 existence.
I've already ranted about Kubuntu and its second-class treatment, notably that the "LTS" aspect of the version I run is only partially supported - it's like a car manufacturer not offering the full warranty on the engine - and although the decision to not support KDE 3 after most of the developers abandoned it seems completely rational, such decisions only serve to undermine the justification for the distribution's existence.