So far, generally, I consider KuCoin as less a scam than not. As with all exchanges, glitches are unavoidable. I don't think there is a single centralized exchange where there is not a single user fund that is stuck.
User u/BCHcain has all the reason to make noise because of the amount involved as well as the period of time the funds are stuck. He/she deserves a better explanation for it. But I don't think KuCoin is going to scam him/her of that amount.
However, I guess responses to troubled users should perhaps show a little commiseration and urgency in their tune. KuCoin, especially the CEO, may find user complaints and the amounts involved insignificant but they could mean everything to them.
The problem, on the other hand, is that almost every single user who is not attended to immediately by the support could easily exclaim scam. Every single day their funds are not yet released is a day of branding the exchange scam.
Exchanges may have bugs or glitches but how soon they are resolving really matters, even if its a week or two its acceptable but few months is not really tolerable for someone who is waiting to make profits since the market is crashing so justice delayed is similar to justice denied but this exist in almost every exchange which kind of attitude should be changed for better user experience.
