1. Is it scalable? If you make it work, it'll be the largest hard drive on the internet ,right?
2. I know it's "Proof of Bandwidth and Storage", But how to earn more money by hosting files?
3. How to invest your project , any IPO plan ?
2. Well its specifically Proof of Storage. Proof of bandwidth may not be needed if the reward mechanisms work right. Not sure of your question. You host someones files and get paid through the network.
3. We will be releasing some details about a crowdsale soon. You put BTC into the genesis address, and you get two tokens. One has a blockchain which we run Metadisk, and is mined. The other is not mined, but runs on the bitcoin blockchain, and can be used to buy and sell storage.
Three ways in which money returns to contributors indirectly:
1) Speculative increase. Remember you have two completely unique coins, so I expect the market will behave like it always does.
2) One of these coins is needed to make Metadisk run. So as people use Metadisk to share and store files on the web, the nodes will be buying the coins off the exchange. This is the only coin that I know of that has a direct use case other than just trading and buying goods.
Direct earnings:
1) Running Metadisk nodes
2) Renting out your hard drive space through Storj software