I don't see lowball offers as a "douche move." Some sellers accept some pretty crazy low offers. Not most of the time, but it happens, and you never know unless you ask. It takes 15 seconds of a seller's time to decline an offer - or zero seconds if they have an auto-decline. A "douche move" is sending a lowball offer and then getting mad when it's declined. Like this would-be Boateng buyer did.