Bittrex seems like a legitimate business. However, at this particular case they have messed up.
First of all, there is no point disabling an account once it reaches this limit. Simply do not allow withdrawal in this case. Why disable the account?
Secondly, when you see there is a massive issue, you do not make an announcement just to ease those who have not their accounts disabled. This is mostly amateur business. It's like you do not care for all the disabled accounts or at the very least, you make a clear discern among your clients.
Third, by the time you write an announcement you must write the full truth. Whichever this is. I don't see any truth. In fact, I do not see any reason in their statement.
Four, you need to make quick amendment. Especially in crypto world. This is going on for too long.
Five, there is no country specific disable. These sound like cheap rumors. I have heard people from the US having their accounts disabled. I even heard people who were verified that got disabled.
So to conclude, if Bittrex does not want to ruin their reputation they need to act before it is too late. No one is happy when they cannot do anything with their account just because an automatic limit excuse or an excuse of an investigation has been used. You can't go far with this. And I hope Bittrex goes far because we are in need of good exchanges and they have shown attributes of being good.
It's never late to admit a messup and fix things up. The first step is to get down from your high horse.