Sure, you don't have to become a murderer to catch murderers.

You can test almost any software with mock data. In fact, such data may be a by far better test as it is composed of things that are on the edge of being problematic..

Well, it's true. You should have at least some Russian intelligence to speak or write Russian...

What is THAT supposed to mean? That the grass is greener at the other side of the Pond? Somebody really lost hist touch with reality...

No it's not. That is a common misconception. What happens with a loan is a "mutual debt". Your bank gives a promise to pay (NOT money!) against your promise to pay the loan with interest. Only if you want the real money instead of passing the numbers around, the bank will have to use "its" (its customer's) reserves. There are laws in some countries that say the bank has to make sure it has the lend-out money after two weeks, in which case the bank loans it from a central bank, which has no obligation at all to anybody. So banks really create money and do not lend it out from some sort of stock. It is said that only 3% of the money is real and the rest is just made up by banks. But that number is from a few years ago.

Please don't give them any ideas! It's bad enough already.

That is an insult. Regular money can be made "at will" by banks and the fact that it is only handed to society for usury ("interest") and some real-value things (like houses) as security, makes it drain any society at no cost to the banks themselves. The funny thing is that all banks can create money, but private persons are criminals when they do exactly the same.

Bitcoins do not come with built-in usury and cannot be made infinitely. Bitcoins do not have built-in discrimination about who can abuse who. Bitcoins are more than a money substitute: Bitcoins make sense. Our current money system does not.

Come again? The differences are huge. Companies are hardly punished for avoiding taxes. In fact, tax offices make special deals with them. This means that somehow the law does not apply to multinationals. Maybe that is why they want to do a crackdown on individuals. Just to show that, despite evidence of the contrary, they seem to be fighting tax evasion.

Now that would be cutting edge technology!

Yes they are. Given the vast amount of data a pilot, and especially a fighter pilot must process, presenting that data is a science. I have a nice pre-WW II book that shows the lay-out for the airspeed indicator, the artificial horizon and the altimeter, which all had their needles (or tail indicator) horizontal during cruise flight. If you would pull or push the stick, all needles would simultaneously go up or down. It is quite a craft to design a user interface for a fighter pilot. Especially if there's hardly any room to put it in.

Banks are hacked and abused as well, but this is never published. What happened to Dodgecoin once is probably peanuts when compared to what happens to credit card companies every year.

The question is not "How can a site make money?", but "how do I prevent a nice site to be bought by an evil company?"