4-while fixing the bug with bitcoind they discovered a flaw in the protocol which would crash bitcoin and its derivates instantly to Zero.
If that were the case he could still alarm Gavin and the dev team and pay out the bitcoins to his customers. This idea makes no sense.
They are purely rubbish.
I agree it is complete speculation but I cant think of a single other case where this kind of secrecy would be acceptable
It's not the reason.
It is not rubbish he indeed discovered a flaw in the Bitcoin protocol. The flaw is if you ever gave your bitcoins to a person in promise for them to return the bitcoins, they might run away with your them.
