They should get in touch with HITBTC, they recently listed VERI, my other favorite ETH token.
Maybe they would list XRL too.
HitBTC is a crap exchange. Nothing burger.
I am not a huge fan of HitBTC exchange either. I dont like them doing IOUs and pumping the prices of ERC tokens before the tokens actually get released.
Me to...thats not a great start for any project....but there must be reasons why is like that.