Yeah, but that still basically says "Rank Amateurs", because you should never pick the psychologically obvious point, as otherwise you'll end up in the sell queue behind a gazillion others. Always best to go in a few points below the obvious level for your sell, and a few points above the obvious for your buy.
If you look at any "real" market, prices rarely adhere to nice round sticking points, because people are at least trying to second guess what the other guys are doing, rather than just acting as though they're the sole person in the market.
This behavior has had me wondering about the experiences people are going to get about how markets work. This one being largely unregulated could turn out to be more cruel than the stock market and some people are going to face the cold reality of that. I remember a few days ago when Mt.Gox. got hit by that DDOS, someone on Twitter was asking how Mt.Gox was planning to compensate customers if the value of BTC fell. Just enforces your point about the experience level of people driving this market.
alot of bitcoin investors, up too this point ARE rank amateurs... nothing new there
"real" markets also have computers and algorithms behind alot of what they are doing. Bitcoin does as well.
I'm sure hitting 200 was either someone setting buy/sells at a point of pride because they wanted too, or a coincidence, or people who don't care because they are long-haul investing.
If you look at any "real" market, prices rarely adhere to nice round sticking points, because people are at least trying to second guess what the other guys are doing, rather than just acting as though they're the sole person in the market.