^ BNB was rise because of the binance exchange and most trader use their coin just to cut fees, there is nothing else matter. We know that BNB will impossible to replace ETH, which is far behind. Besides, as they said, BNB is fully centralized rather than ETH and that is the reason probably that BNB can not surpass ETH. I think there is nothing special with the BNB, it is coincidentally that the fees on ETH were ridiculous these days and traders find a way to move their money and to save from the high fees.
The price was indeed increased because people can use it to cut fees, but if it just like that then there's no way the price explode like right now. It's more like because ethereum transaction fee is so high that people move their project to binance smart chain and people see it as the second coming of ethereum, meaning the price is very undervalued for that kind of use case (not just as exchange token to cut fee). If the transaction cost problem of eth is solved then i believe people will move back and the value of bnb will decrease again.