If I am looking to buy then 90% of the time I ask if they will take a lower offer. If someone considers that some sort of insult or "low ball" then I probably don't want to deal with that person anyway. What the hell do they teach millennials at school nowdays that makes them so damn delicate in the real world? I was raised and taught to always try and negotiate the best deal regardless of buying a house, car or a pair of socks. I expect (and have received) the same response when I post an item. I just didn't know I was supposed to get all pissy about it.