Does that mean you
attacked the sale registration process?
No, HitBTC is merely offering "IOU Trading". The tokens for sale are not actual ZRX tokens.
More info:
https://blog.hitbtc.com/ico-faq/Don't do it. Wait for exchanges to trade the real token.
I'm a bit familiar with IOU fom Liqui.
They got from the ICO and IOU trading happens. Bu they know they'll get the tokens and price and more...
But this time every participants have limit.
That's why I asked. I wasn't accusing, please don't get me wrong.