Is that not unlike asking should we tithe in Monopoly money? (should someone decide that actually has some kind of real world value)
Gold and silver have had a universal value as currency for thousands of years.
At present - outside the game board, ZERO. Which is exactly what every bitcoin should be worth.
I have heard quotes in the last week from about $400 to $1k. The latter value was from an NPR story on "ransomeware" viruses.
Not really pointless. It's just that 'mining' them has finally become pointless, and that was by design. There was only supposed to be a finite number of bitcoins 'minted' and we're approaching that number. At that point you can buy and sell and trade and hold them but not make new ones. They will have the value the market gives them, rising and falling with demand. But there never will be trillions of bitcoins, as if our government might some day just decide to print money. Wait, they already do that to a degree. Anyhow, bitcoins have value outside of government policy, and may be an excellent hedge against government currency manipulation, whatever government. Not that I can afford to be into currency hedging. That is an art for the rich.
Nobody rigged it. By design, it gets less and less rewarding to mine the bitcoins as the number mined approaches the total number of allowable bitcoins. It's a purposefully gradual thing. And a finite number of bitcoins makes some sense. The hardware issue is separate, with rapid technological advances in multiprocessor cores making a single core bitcoin miner laughable. That's where I was. So I was able to figure out that I either invest thousands of dollars into a fancy bitcoin miner, and thousands more every few months, or I forget about mining entirely. I don't have the bucks, or the interest, to be an up to date bitcoin miner. Didn't work for me. That does not mean it's rigged. It's just the combination of diminishing returns on mining and hardware capabilities gone wild. I never made a dollar on bitcoin. But as an alternate currency I see it could have some merit even if I can't mine or mint any myself.
Tithing is an Old Testament principle that carried through to the New Testament but not in the legalistic fashion of the old Covenant law. You have to remember that Abraham tithed to Melchizedek before the old Covenant law was ever in place and if you read that story carefully in Genesis 14 you'll see that Melchizedek was a physical manifestation of God.
You say tithing carried over to the NT but give me an OT verse to prove it. It seems you're more interested in injecting Mechizedek into the topic. Lets take it back to bitcoins and tithing and leave everything else out of it.
Gold is more stable and valuable than dollars. $1 is worth $1 but can go up and down against other currencies, gold is currently worth approx $1200 an ounce.
Gold is the basis for currency, without gold there would be no currency. It has been like this since the earliest of days. The Bible says the land of Havilah is rich in Gold, it doesn't say it is rich in dollars. Gold is mined, refined, and made into bullion and then stored. Countries store gold around the value of the currency that have in circulation. When gold prices go up the money in circulation magically goes up, when gold drops in value the amount of money in circulation goes down. The entire financial system is based on the value of gold. When times are difficult gold increases in value, money in circulation increases, prices go up, people think times are hard because they have to spend more to survive. When times are good gold value goes down, money in circulation goes down, prices go down, people think they are better off because they are not spending as much as they did before. Little do they realise this feeling is artificial because if values continue to go down, money is continuously removed from circulation, and prices continue to go down, recession then depression occur.
Read my post before this to get an idea of how things started. Capitalism is the thing here.The world financial system depends on growth, prices, wages, values, are required to go up for growth to occur. If these things go down for to long recession then depression occur. If a crash happens, like 1929 and 2007-8, then a global financial crisis occurs. Are you still with me?
Bitcoin was basically like a bartering system but now people have put prices on commodities so the bartering aspect is nearly gone. It can only be traded electronically and it can only be stored in cyber banks.
Bitcoin mining is basically storing all the information about the bitcoin system and all of the transactions on your computer. You are in effect using your computer to keep the bitcoin system functioning. Because of this you get paid in bitcoins. Who is running the organisation, that I do not know.
That will never happen in my lifetime and I doubt it will happen in the next 3-4 generations. There has to be something tangible for the currency to be based on. Things like gold, property, etc are the basis for capitalism.
Unfortunately knowledge is power and many people feel a need to keep others in the dark. Keeping the uneducated uneducated means they must rely on those who are educated.
Yes everyone can buy me coffee. 
(I'm an coffee addict) 
