KDE sits in a weird place in my case. If I want something to just get out of the way, I use GNOME. If I want to scratch my geek itch and have a super custom and fancy hacker desktop, I resort to things like i3. KDE doesn't appeal to me as of today. Just my personal anecdote.
I use KDE because it’s stable, has every feature I want, and uses existing metaphors I am familiar with.
In my circle of Linux users, a lot of the people that choose KDE do so because they don’t find the desktop layer interesting to hack on, and just want a tool for interacting with Linux.
