What would you accomplish with this? I don't think they make any money on Ripple.com, other than as a way of promoting the Ripple network, which they will hope will eventually lead to substantial appreciation of XRP. Running a gateway (which means holding fiat currencies and cryptocurrencies other than XRP for safekeeping) or acting as a market maker is how you make money with Ripple, and you don't need Ripple.com for it.