Yobit does it all the time. They do have bad support I suppose for some people but I've also seen support to users who got fast response from them. And most of the time they claimed support are fast when using the chatbox. Its not yobit that's the scam, its those coins and those that pumped it. Yobit treat their exchange as business so whether the coin is scam or list they list it and its your to take risk in investing or trading which ever the coin you chose. There are tons of exchange in the crypto industry, find one that you like more.
Yeah exactly, just look at how many scam ICOs went live on yoshit. I wonder how many of those shitcoins were made by yoshit itself or by colluded scammy devs.