You make a lot of separate points, so let me try to hit them one at a time.
Bitcoin is not a pyramid scheme. Go read up what a pyramid scheme is. In a pyramid scheme existing investors are paid with the monies coming in from new investors. Consider Bernie Madoff–he would take money coming in from new investors are pay it out to older investors who made withdrawals. There was no value at its core, just a moving of money from new investors to old; and eventually income from new investors are unable to support the system and it collapses. With bitcoin no existing investors are paid with the monies of new investors. Instead it acts like any other investment: people value it, buy into it, the market decides its value at any moment, maybe it gains more attention and is valued higher and those that invested early are rewarded for the risk they took. Just like other investments the market’s view of its value might change… the market might one day decide the value is 0 and all investors lose out, but again this is no different than many other investments. The point is there is never a collapse due to monies coming in from new investors being insufficient to pay off the liabilities of existing investors because no such money flow exists. YOU might disagree with the value proposition of bitcoin (likely because you don’t have a clue what it is), but that doesn’t make it a pyramid scheme. The definition of pyramid scheme makes bitcoin not a pyramid scheme.
Bitcoin might suffer from “pump and dump” just as any investment with low enough float and volume can be manipulated by people that drive up excitement (for the pump) then sell into it (for the dump). However this is no fault of bitcoin and is a problem with any small float/volume investment. Interestingly the more people that get into bitcoin the more stable it gets and the less it suffers from that sort of manipulation.
I agree investors in bitcoin have certain risks… for example the market might fall and price drop significantly or to zero; this is the same as any investment with no actual intrinsic, cash, or book value. There are competing crypto-coins and those that value bitcoin and make its market need to take that into consideration (and DO take that into consideration) when deciding what to buy/sell a bitcoin for. No doubt bitcoin’s current price stagnation is due to the competition of competing coins. But that’s what makes a market.
There are many other cyprocurrencies out there but that does not mean bitcoin has more than 22 million bitcoin. Bitcoins exist in their own database (called a “blockchain”) and other cryptocurrencies cannot add or remove coins from that database. Other coins have their own databases, but to say that somehow makes more bitcoin is to say AAPL issuing shares will make more shares of MSFT–it’s absurd on its face and is a foolish thing to say.
We don’t hoard dollars to make profits from dollars in the future because everyone knows the supply of dollars is managed by government and controlled so value falls over time (inflation). People however do hoard gold (and other investments) and speculate on its future price because it cannot be created at the whim of a government. Bitcoin is no different–why would it be? If some people want to speculate on the future value of bitcoin, why would that be a problem? The point I was making in comparing bitcoin to dollars was a point about intrinsic value–bitcoin can be argued to have no intrinsic value just like dollars and many other investments.
I agree not everyone accepts bitcoin, but why is that relevant? Some people don’t accept VISA; some people don’t accept paypal; some people don’t accept gold; etc. But so what? The point is some people DO accept bitcoin, and more importantly some people have value in bitcoin and want to spend it! Why not accept that value if it is safe to do so? Services exist that will convert bitcoin to dollars for businesses that want to receive payment from people with bitcoin but receive those payments in dollars. Anyone can use those services and automatically receive dollars when someone pays in bitcoin–and the fees are cheaper than VISA, paypal and similar services, there are no charge-backs, and settling time is much faster. So why not accept it? There is no risk or tax issues as you can get paid in dollars. If you’re waiting for someone else to go first, that’s already happened–businesses like Microsoft and Dell already accept bitcoin payments (using services that convert to dollars I think).
I think the answer to why you have a problem with bitcoin is similar to why many people have a problem with bitcoin. They don’t understand it and have some sort of fear-based hatred of it because of that ignorance. There is nothing wrong with that–if you want to hate bitcoin, go right ahead. Lots of people hate VISA too. But to claim it’s a pyramid scheme, or will have more than 22 million coins, or must somehow collapse to zero… none of those things are actually true. Bitcoin has plenty of risks associated with it without resorting to claims that simply aren’t true. I could go into detail about those risks but this is long enough already. I also don’t advocate investing in bitcoin–it is way too risky.