Years ago Ebay was set up differently. I have had on 2 occasions (not figs mind you), other ebay members contact me trying to collaborate on auctions. For example, when the same people are bidding on similar auctions, one would say, "hey I'll stop bidding on X, if you stop bidding on Y".
And I knew a guy, who tried to convince me to bid on his auction to drive the price up. I think this is despicable, and definitely amoral. He then opened another account in his wife's name and did it anyway. He justified it by saying he knew of lots of people doing it....some people I tell you ruin it for the whole bunch...banker/speculator mentality.
For the love of money is the root of all evil.