Lol, password in the URL in cleartext!

The profits from the book will be used towards building a Space Elevator.

No it is not. The original claim was "Bitcoin just lost 92% of it's value", when in fact, it has not.

The "bitcoins" in Mt. Gox are not, in fact, bitcoins, they are account balances, which means promissory notes by Mt Gox to pay out this amount of bitcoins.

Those who moved out quickly probably didn't lose that much. They should have moved out as soon as problems with withdrawing happened. Maybe give them 2-3 days in case it was a technical problem.

Which wallet is that? Why do the transactions have equal amounts (+10000 BTC then -10000 BTC, etc.)?

Well, you can't say it was unexpected. There have been problems with Mt. Gox for months now, ever since dollar withdrawals were stopped, so anyone using them was doing it at their own risk.

Cautious people would have sold their trapped dollars at a discount while they still could, and taken out all their bitcoins, so they wouldn't have lost too much. The unwary... well, they'll pay some stupid-tax.

Most people around me say it's better to keep your coins in an online wallet because it's easier to set-up, but I didn't do that, because then it would be the exchange that controls my money.

If people had kept their bitcoins in offline wallets, Mt. Gox wouldn't have been able to take them.

It's worse than that. Most of those users are not paying anything at all. WhatsApp was free until recently, and now they are free for the first year and after that you have to subscribe. I don't know how many users are paying but they had $20 million dollars revenue for 2013.

Now, I can't find info, but IF they introduced the fee less than one year ago, then it's a time bomb, and there's no telling how much users they'll have left after everyone has to pay. Free apps always have more users than paid apps, even when you pay a little.

Well, I sure hope they get 16 billion dollars worth of cross-referencing and validation out of WhatsApp :)

WhatsApp already has 450 million users, if Facebook were to roll out their own app, they would have 0 users, and would be trying to take away from an incumbent. WhatsApp didn't have to take them away from anyone, they had first-mover advantage.

When did they start with the $1 fee? Has one year passed yet? I.e. are there users who have already had to stop using WhatsApp or start paying? I would be interested to see the conversion rate, how many start paying vs how many drop out.