It's called insolvency. I have said it before already, but what's happening is that they fill gaps with debt, and that's never a good way to move forward. In easy to understand language; at the moment you deposit Litecoin for example, Cryptopia will use your coins to fund the withdrawal requests of people who've been waiting for days or weeks. It's almost like a scheme structure where early birds get paid out with the money flowing in from new investors. One way or another, something is horribly wrong, that's for sure, but what I don't understand is how people despite all the warnings and complaints, still deposit funds in an obvious shithole. In some cases you have to understand when to ditch an exchange, regardless of how many shitcoins they host that other exchanges rightfully aren't willing to list.