On HN, if you present a technical hack, everybody likes it and thinks it's a interesting proposition. It does not matter that it is usually illegal to exploit it in real life.

However if you come with a business hack, people tend to point out that it's so illegal. The point of the OP is that black hat business hackers could still exploit it and they likely have ways to leak such information anonymously.

It's understood that just like black hat computer hackers they are in huge trouble if they get caught and OP does not encourage anyone to perform illegal actions.