Schoelje
Agreed, its best if you keep things as is and maintain your own control over LMDE/KDE, and XFCE. We end users have much more rapid and direct feedback (and on occassion
direct input) to how things develop. Your doing an excellent job in what you have done so far. Mint main editions are the priority of the Mint team (they always have been, and perhaps that is the best decision for Mint), but many of us prefer LMDE, and other desktops.
In honestly, I prefer XFCE over KDE, but prefer both of those over Cinnamon or Mate. From what I gather Clem based his decision to focus on Cinnamon and Mate from the poll and from number of .iso downloads. I have to ask myself if this is truly a valid method of sampling? I would guess that many of the downloads are from folks who are ditro-hoppers (guilty myself...

), and are perhaps not an OS that people use for daily computing. People just want to have a
'look-see". I'd bet in the real-world KDE and XFCE see more usage than presumed by Mint.
In any event, I agree its the community here that keep me interested in LMDE, and anything I know or learned about Linux is from this forum (well 99%, anyway...

).
Your hard work is appreciated. I wish I could help more, but with my limited knowledge, and hardware variety, its hard to do more.