BCNEX is just a new exchange and has its own coins. I also have an account at BCNEX, but frankly I have not tried this exchange for trading. But if I'm not wrong for BCNEX coin holders will get a daily bonus, even if you have a lot of BCNEX coins, then you will get a bonus every hour and you can claim it. But I don't know how long this kind of strategy will take place to popularize their exchange.
There is no daily bonus by holding BCNEX coins, only the reedem process from the previous campaign that can be unlocked automatically by 2% every day. the percentage can be higher if the user enlarges their bcnex assets. their trading volume is quite good and bot activity is not very strong, almost similar to binance but on a smaller scale. Their system seems to be still manual for each withdrawal process.