imagine that the BTC/Doge transaction on B&C exchange is very popular and all the process/transaction ability( 10 per second) is occupied by BTC/Doge pair for a long time, what will BKS holders do? BTC/Doge or BTC/NBT to be delisted(at least temporary)?
Today, the ripple-doge-ltc trade volume is much higher than NBT pairs( hundreds times bigger), if you open B&C exchange to other cryptos trading, the BKS holders will judge which one is the most trade volume thus most transaction fee.