HRoth - 2:46 pm on Apr 9, 2012 (gmt 0)
People do this because they are immature and stupid. I don't think every single one of them can be screened out, but I have certainly modified what I sell to decrease the numbers of this type of customer. I have dropped some items and rewritten text so they won't be attracted to my site. It has worked.
I think most of the time when people say they didn't get, they actually didn't get it in some way. They aren't lying, just can't find it.