I personally don't use HitBTC because of it's reputation for unreliability & lack of transparency, but it sounds like they've become closed-market products originally based on STEEM/SBD. I think the result is it becomes illiquid & forces them to be traded similar to derivative products, priced irrespective of the original assets. If the market has a large circulating supply I'd assume there would be a price discrepancy, but should become less volatile..
I think that eventually HitBTC will work out the bugs. Seems like the wallet issue could be fixed very easily. If they don't fix it, it could be a real battle for them to prove to auditors and to the users that they can be trusted.