I Can not see any referral links there. But yeah maybe site automatically redirect to their own referral link to track their traffic or something like that.

ok now talking about the token itself. If you notice most of the site own token for example (binance-bnb, kucoin-kcs ) are doing well from the beginning. It's always a good choice if you invest such coin, but obviously you have to chose the better one. There is no doubt It's a good news that nominex migrated to bsc chain. A bullish thing for recent markets. But TBH I don't think NMX is much popular like other exchange. If Nominex spread the use of nmx token is several act, for example IEO, and give some good service as a trusted exchange hope will see a big ROY from nmx.