If you ask them is because there is no user demand for it. Which is a lot of bull. Who cares about Bittrex anyway? We wanted to be there, we have repeatedly asked them and also other larger crypto exchanges (we even lowered ourselves to begging) and still not on any (larger) exchange. The main point is that all exchanges have missed this ICO and do not have liquidity to earn some easy money. Their fault. Reggie planned to sell 51 mio tokens and is not his fault that only a little bit less than 2 mio was bought. If you ask me good riddance ... They have written bots to artificially place bids anyway (have seen it with my own eyes on Bittrex - and am sure that they are not an exception). Screw them. We will soon be on true exchange and not on some script kiddy playground.