The fine print can be rewritten as follows:

*:Unless you use with Wayland backend, since Wayland is not mature enough.

Because my installation both has large network mounts, and I sometimes drag tons* of icons around.

Yeah, the fine print also needs a "works on my machine" bit :-).

Actually no. Because of my career, I deployed KDE to some very resource limited thin clients and it worked pretty well.

Also I talk with people who use KDE, and report bugs I encounter, or encourage people to report bugs when people I talk encounters them.

I'm pretty beyond "It works in my machine, so PEBKAC" at this point. I think using Linux for 20 years and managing a large fleet for 15 years helped on that front a lot. :-)

Oh, a milion humble apologies, my liege, I was entirely unaware of your decades of experience. Surely machines work better under your touch, for they can see the twinkle of authority in your eye. I shall revise my erroneous configuration for surely my ability to hold it right is insufficient; indeed, my mastery of software has dwindled since the days when my patches were accepted in KDE 3.1 and I am truly at a loss when it comes to manipulating the advanced software of our days.