Remember the Raymond Burr TV series IRONSIDE? Of course none of you do, but a scene from an early episode is relevant to coffee drinkers.
Ironside once scolded the Barbara Anderson character for washing out his coffee pot (as opposed to his piss pot) because washing it removed the coffee pot's "seasoning", like what one might have with a Wok or cast iron skillet.
I only clean my coffee maker when I change brands or when it well and truly needs it, meaning when the coffee's taste is affected by it needing a cleaning.
Oh, and I never could stand Raymond "Dead, Dark Eyes" Burr, though he was more slightly palatable when he grew facial hair in those 1980s and '90s Perry Mason TV films.