Not really sure what the deal is with Bittrex and adding XCP, XCH, & NXT assets. Exchanges like Bter and Poloniex can add them just fine, but Bittrex seems to not add them.
Not adding coins like XCH while adding coins like DarkShibe, CannabisDark, UroDark...lol I dont get it.
Wallets not based on bitcoin take more time, effort and code (read: money) to audit and maintain, apparently their decisions are based on that.