I have noticed that on almost all of my deals here (and I have done them for a very long time) that there is always a few that will try and low ball you. No problem with that, although it is a bit annoying to be expected to respond to some of the silly offers I have received.
That being said, it is very annoying to agree to someone's terms and then have them go away after you thought you had a deal. I, for one, am glad that this person has been identified.
If you don't have anything nice to say about someone, come sit down next to me!