Unfortunately, there is no 100% implementation of VC in WM6 ROMs. If you want to go into semantics, you could say partially working (sometimes/in some cases etc) VC is not completely useless, but until it is worked into the ROM properly, I say it is.
Incidentally, have you managed to actually read the thread?
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?