So I'm logged in doing some trading on a player that has the majority of BIN's at 169k, with 3 or 4 at 159k.

I query the market for players below 145k, which will be an easy buy at a nice enough margin, when suddenly I spot that some idiot places 6 cards at 125k.

My first thought was that someone who invested a few cards was trying to make a flash crash, hoping that other sellers would see all these cards and think that should be the new BIN, and that they should lower their expectations to match, leading to an overall crash in prices.

Well, I took the chance of seeing this as an opportunity. I had more than enough cash to do this, and could make a decent profit even at the other lowest BIN, so I bought all the cards.

WTF though, some people are idiots...