I love to trade on this exchange right before I sold my last holdings of DASH on its prime. Also been hearing rumors about Bittrex accepting scamcoins on their exchange. Maybe some people working on bittrex do have some deals with the devs of such coins (aside from what they already charge when you enlist a coin). Personally, I wouldn't just touch any of these coins, but to think that the exchange I'm trading on supports or approves the shit, well it's a different story.
Oh and btw, afaik Cryptsy tried to avoid IPO shitcoins and those shitcoins went on trex first before finding another exchange. Cryptsy simply went nuts.
+1 Cryptsy simply went nuts