Earlier quoted context omitted.
Not usually. But homeowners don't usually set the price themselves. Yes, yes, yes, yes, yes, technically they can. But a _realtor_ is in their ear telling them MORE MORE MORE.
Actually realtors egg on buyers to offer more more more. And sellers to reduce asking prices. Whatever makes the sale happen quicker.
Realtors negotiate for themselves, not for either buyers or sellers.
I did have one who dropped their commission a little to close a sale, but that's not a common experience. (And they still did very well out of it.)