I have used HITBTC without a problem, i usually trade shitcoin for BTC or DOGE and most of the time withdraw DOGE without problem and i never had a problem, never ever had more than 100$ on the exchange.
$100 is hardly any money, be it in crypto or real world grocery shopping so this isn't indicative of anything. If I cannot withdraw an amount which is below their own limit for unverified users i.e. 1 BTC / day, then they are insolvent and/or a SCAM. Either way nobody who values their money should deposit anything on their platform. There are a lot of other more reputable venues to trade on.
Until there is no evidence or at least a convincing investigation, it's all just bla bla bla. I use this exchange, I trade, I withdraw, etc. I've come through KYC once, that wasn't a trouble. I think some people tend to panic when something goes not the way they were planning. That's not the right reason to dismiss the entire platform.