In reality KDE projects should start with GNU/K, because thr KDE desktop environment is just a small part of the GNU operating system, which is actually the core of the operating system.
I know you're joking, but KDE is much more than just a Linux desktop environment. They make all sorts of software working on all sorts of operating systems. I use Kdenlive on windows for example. And 90% of browsers nowadays use a fork of KDEs KHTML rendering engine.
Wow, I didn't know about the KHTML rendering engine! I also use kdenlive for (small) video editing; but I don't like that it has too many dependencies (it even installed the phone link thingy)