Here are other examples of braindeadness in KDE4: http://lwn.net/Articles/466857/ And that's just in KDE desktop. I have scores more of examples in other applications (like Amarok) or Krita.
It seems that KDE developers have actually given up on doing anything useful. From my point of view, many man-years were spent on intrusive technology that actually has no positive impact while other 'boring' parts of the system were being neglected.
We still don't have a single 'killer case' for the whole Semantic Desktop initiative. Right now it just provides file search functionality and eats quite a bit of RAM.