I've found the same thing from people. But not in support, just in dealing with them.
I move a lot, and inevitably end up giving a lot of things away. What I've found is that when I post offers for things for free, it attracted the absolute worst of people. People who would claim it and never show up, or claim it and tell me they could come get it in two weeks. And -tons- of people who say they'll take it and ask when I can deliver it. Then get offended when I tell them I'm not delivering it.
I still remember vividly a dresser I was offering for free. A person said they'll take it, and asked when I could bring it over. When I told them no, they replied in all caps something along the lines of 'I HAVE A COROLLA HOW THE HELL AM I SUPPOSED TO FIT IT IN THERE', like I was the dumb one.
So now I just list everything for a pretty low price, then just tell them it's free when they arrive. It cut down on the amount of riffraff by about 90%.