I have been reading the blog, and I see the advantage of the BNK zero fees trades to get XRP

Trade Ripple on Bankera Exchange
Bankera is very happy to welcome XRP, one of the most well-known cryptocurrencies on the market, to our platform. XRP was among the few top coins whose price performed well even during the bear run of cryptocurrencies in 2018.
On Bankera Exchange, the currency is paired with four leading cryptocurrencies: Bitcoin (BTC), Ethereum (ETH), Tether (USDT) and Banker token (BNK). XRP deposits, withdrawals, and trading have already been enabled on the platform.
What is more, BNK token holders can take advantage of exclusive benefits and trade Ripple entirely fee-free at Bankera Exchange!