Hive account@boxmining I personally "lost" 10 XRB on that, but that doesn't care much. I sat in the Train last Weekend and had enough time to read a couple of News about that, also the medium article from NANO Team.

I was pretty irritated about the BitGrail guy. In the Chat protocol he really drasticly asked to use "burned coins" for "resoring" the loss.

Two things about that:

1. I don't know exactly what NANO burned coins are. But from other currencys I know it is about reducing the circulation supply. Like a wallet nobody has an key for
2. No matter if my description above is correct: Why in hell should the NANO Team restore his loss?

So you guess my Position: BitGrail has a fault. Whether it was SCAM or a development Problem, no matter.

If you read all this, the BitGrail guy really asks "Can you manipulate your DB to revert the unauthorized Transactions".
He really did NOT understand what an Blockchain is, what immutability is. That does sounds like an expert in this area.

Also the whole Chat sounds like the Team (if any) around BitGrail is really small. I don't know if you can serve a stable and secure centralized Exchange with just a couple (or a single) Person.

So for me, BitGrail has Trouble.

But one Point I Need to confirm with him: The NANO Protocoll store any helpfull Information. No Timestamp of TX and no "Message" (that would be usefull to not create one wallet for one Transaction to identify the reason for that TX).
So analysing this Piece of Problem will be really hard, as BitGrail cant really on the own Nodes and have to use the official Explorer.

But this official Explorer is centralized. And for storing Timestamps, an DB is used (no Blockchain) and this DB could be manipulated. So if we try to expect that NANO is a SCAM (I hope not so), that could be a way how they could hide their Problems...