When I listed my car for sale I decided to turn back the odometer.
Why would you mislead potential buyers by turning back the odometer in your car?
Because I needed to get more money for the car.
Its wrong to mislead people when conducting a sale. You're ripping them off and giving them less for what they paid. If they find out you lied they may want to get revenge on you.
So, who cares? They are just stupid outsiders.
While right now they are outsiders, what if one day someone does the same thing to you? You should not mislead people unless you're okay with being mislead yourself.