First of all, I'd like bring everyone's attention to the fact that that our friendly competition will result in consumer needs being met more fully and at less cost than if we weren't both here. So, on behalf of the consumer, I thank you for your work.
What NuBits offers the consumer is quite simple to understand (crypto that is always worth $1), but how we do that is complex and difficult for the uninitiated to comprehend. I would like to take this opportunity to clarify some misunderstandings presented here.
In fact, they are so clever they hide the interest they charge you for using their NuBits in the spread... 100% guaranteed profit. You buy NuBits for $1.00 and you can sell them back to them for $0.995 0.4% goes to the exchange, .1% goes to the market makers. You are exposed to counter party risk and paying them for the privilege. This might be their whole plan, to disguise a user issued asset as a decentralized trust-free crypto currency.
Liquidity provider custodians use software called NuBot, which offers NuBits at $1.00 with a spread to cover the cost of transaction fees. On an exchange that has a 0.2% transaction fee, NuBits are sold for 1.002 and purchased at 0.998. Market makers do not profit from these trades, but they are offered separate compensation by shareholders. Purchasers of NuBits have no counterparty risk once they withdraw their NuBits from the exchange they purchase them at.
What if they take the real USD *off of the exchange* and spend it on something (to fund infrastructure).... now the "market makers" have to increase their spread to cover transaction costs *AND* NuBits has just gone fractional reserve. It is the same old fractional reserve ponzi scheme... build confidence by maintaining redeem-ability for a long enough period of time to earn "trust" then slowly remove the backing. My conclusion here is that NuBits will continue to hold with a much tighter spread simply because of how they were issued... "sold for USD" rather than "sold for crypto" the backers of NuBits will not spend much of the USD they received by selling NuBits.
99% of NuBits have been sold for Bitcoin and Peercoin, while there is a trickle of volume on a USD trading pair. I can't see any circumstance where liquidity provider custodians would increase the spread on the liquidity they provide.
I struggled with the issue of backing assets when initially designing Nu. No one has figured out how to back assets without introducing counterparty risk. This is why Bitcoin is not backed by gold, like the failed E-Gold network. Even if backing consists of decentralized assets, the backing can fail if the backing assets lose value. Nu prioritizes reliability and the elimination of counterparty risk over backing.
So NuBits can be viewed as a "basket of USD" held on multiple different exchanges where the issuers reserve the right to spend the depositors money and not redeem it. As a NuBits holder you are now subject to the combined risk of all USD exchanges that the market makers are participating in PLUS the risk of NuShare holders spending the deposited funds. There is never anything that returns value to NuBits except market maker spreads... only things that can suck value of of it. It is a one way valve.
I have no doubt that at some point a liquidity provider custodian will lose some quantity of funds as a result of an exchange default. While initial liquidity has been provided by shareholder creation of NuBits, the quantity of LPCs that have provided their own funds already exceeds the number that received their funds from shareholders and I expect we will complete this transition soon. If one of these LPCs experiences an exchange default, they bear the loss themselves and it has no systemic implications.
Indigoman proposed a protocol modification that permits shrinking the supply of NuBits down to zero if necessary by burning NuBits in exchange for NuShares. This change has broad shareholder support and its inclusion in the protocol is all but certain. I will be posting the contents of a motion to implement this shortly.
While my initial design provided no way to substantially reduce the supply of NuBits, the design has been improved to allow the elimination of as many NuBits as necessary, making them the liability of shareholders.