Not here to start anything but with all of the recent developments with coin creaters, you cant help but wonder as a potential buyer. Its not far fetched that people will join just to bid, but since this forum is one of the main forums used for physical coin buying/selling/etc why don't you guys use it more?
Can't really speak for them, but my speculation is that many are not looking to sell the coins in the short term but much later, and may actually use the forum later for selling (which makes sense, since there are a lot of potential buyers here). Also not everyone is interested in collecting all the different coins out there, perhaps just interested in specific coins.
Actually at least one guy whom I know IRL that won a coin from a previous auction asked recently about selling. But he is a newbie user here and has little know-how on how to conduct an efficient auction or sell thread to get a good price. Trying to help him with that somehow. Anyways I think that many of these users will eventually come back one way or another when they feel like selling those coins. There are few places anywhere that are better for selling the coins, if any.