^There seems to be a lot of people figuring out that these are valuable shares.

My take is this....

The purchase price is in bitcoins, and you get paid dividends in bitcoins, and the price of bitcoins is generally going up up up.

Basically, I parked some of my bitcoins there by buying shares....those shares are going up in price, and the price of bitcoins is rising as well.

So really you are getting paid multiple benefits for bitcoins that would be sitting in a storage wallet anyway...the only thing you are doing is assuming some small amount of risk.  

When you look at who is running the exchanges (burnside etc.) and how they have set things up, and you read about him that small amount of risk seems very acceptable to me.