Anyone who has given at least one of them an honest try, and then decided accordingly that tiling window managers do NOT work well with your specific workflow: Why don't they?
I mean this neither sarcastically nor rhetorically, nor do I intend to solicite any objectively bad takes any hotter than my own; I'm actually asking.
@Christian_Freiherr_von_Wolff I moved away from them when I got more into game development -- things like the godot editor or blender are very mouse-driven with lots of panels, which doesn't work well with a tiling wm. If I was doing heavy web programming or pure writing again though I'd probably go back.