A Ponzi or MLM use a single source of supply to create a profit center. You can buy bitcoins on the open market. That would be like buying your competitors products to sell and would kill your pyramid.
MLM people like MLM. They would get all their people in just to make a profit off it.

It's also easy to cheat. Do MLM people like cheaters?
Freedom isn't cheating. However, one of the things that I am looking for is ideas for making it difficult to do the thing that might be considered cheating by some... to guide folks into the direction of using it as it is. There might come about alt-Ponzicoin clients. But, if we don't do it with Bitcoin, somebody just might apply this idea to Litecoin, or one of the others, that has its own blockchain.
The point is, nobody could control a Bitcoin MLM that was built right into the client. If it caught on in the MLM croud, Bitcoin would explode.

What I'm saying is that your idea is not an MLM. It doesn't work like an MLM. You're not going to fool anyone.
Basically, it is EXACTLY like simple MLM. It works like an automated chain letter that has no mailing or emailing requirements.
You give your install program to your friends. They install it; same as installing the Bitcoin-Qt client. They buy some bitcoins into their wallet, check the checkbox, and hit the button. Precisely .5 bitcoins is sent from the wallet (plus the miner fee), and a new install is created for them to pass on to their MLM friends. There could be a splash page built right into the client that explains how to use Bitcoin for everyday living.
Sure, they could "cheat." They could use the install program they just created, and continue to use it until they had created 5 new Bitcoin-Qt clients so that they could get paid more. But that is what I am asking for here... methods to slow down this "cheating" which really is simply freedom.

Bitcoin is highly resistant to the rules you want to impose. You also offer no incentive to slow down cheating. You can't design a tool with no purpose for its use. If you want to create an MLM using bitcoins, then color some bitcoins and offer an incentive for using them. That's what colored coins are for. You can even create a wallet that uses them in addition to bitcoins.
Bitcoin is absolutely not resistant to the things that I am suggesting in this thread. Everything in the Bitcoin world would continue to act as usual with the Ponzicoin idea. The only thing that might be resistant would be some Bitcoiners who don't like MLM. Some of them might stand to lose if they didn't get with the times and start spreading Bitcoin through the Ponzicoin method.
Actually, I did offer two ideas to slow down cheating (which is really freedom - not cheating). These are the checkbox idea, and the idea of mixing the computer (OS) ID with the setup. This would make it so that a Bitcoiner would have to, at minimum, use a second computer to "cheat." Also, I am asking for ideas how to overcome this "problem."
Why use colored coins when the whole idea is to use bitcoins as they are. That's all this is. The incentive is to make money by spreading Bitcoin around the world.
