This is my thinking:
The NBT/BTC pair lets NBT directly exposed to volatility of BTC price, Nu has a hard time when customers dump NBT for BTC just like these days. If we find a relative stable crypto, the risk is very low. But we cannot use NBT/Tether pair because both are competitive each other. We need a relative stable but not very stable as FIAT’s face value.
And we dislike NBT/FIAT pair because the exchange fault risk to our LPs.
So what about making BKC the 1st defend line of BTC volatility? Behind BKC wall, NBT will be quite safe, not only B&C is “home” platform for NBT, but also the relative stable BKC. i.e BKC/NBT pair. A very low cost pair!
To avoid competition between BKC and NBT, BKC can be positioned as anti-inflation currency pegging to 1.1 or 1.7$(buying power in 2009 or 1990s).i.e. B&C continuously sells BKC at an official guide price.
B&C ENCOURAGE BUT NOT GUARANTTE THE PEG OF BKC, THE LIQUIDITY OF BKC IS THE RUSLT OF HUMAN’S ACTION NOT OF HUNMAN’S DESGIN (spontaneous order theory). SINCE BKC’S SPREAD MAY BE 20% OR 5%, THE RELATIVE STABLE BKC IS SUITABLE FOR NBT’S PEGGING.
Therefore, NBT is a USD token in B&C exchange and BKC/NBT is the main pegging pair maintained by NBT liquidity providers. And the cost of LP is quite low for reasons above.ie safe platform and less exposed to volatility price.
If a big NBT holder dump NBT like now, the buy wall of BKC is very thin, and B&C may quickly loan lots of BKC to NBT LPs to avoid possible peg failure. After the whale dumping NBT, he has tons of BKC in hands, and because B&C not guarantee to peg BKC, no body will be obliged to maintain BKC’s price so let whatever happens! After all, BKC is being destroyed every day, sooner or later the BKC price will come back to normal official guide price.