Without these people BTC and all altcoins would be worthless. They are what brings volume and your idea is pretty damn stupid.
Very akin to removing all altcoins. Would be the death of BTC completely. There are very few major businesses that use BTC, Dell being the biggest I know, and no real reason to buy them for financial usage.
Without that volume it is nothing.
No, without this, bitcoin would have its currency value, given by Fisher's formula. We both agree that this would be ridiculously small as compared to the actual market cap. If a *currency* is used (you know, to buy and sell goods), there is a demand for it, and an average hold time, between the moment where you obtain the money when you sell stuff of value, and the moment where you spend it to obtain stuff of value. This demand gives rise to the normal price of a currency. That should normally be bitcoin's price.
All the rest is greater-fool. And, as we can see, this aspect of it is HUGE.