I am sure that most people who have millions in their banks have invested their money well to achieve such results. Still such number seems to be insane to me.
Also I find it curious that people are willing to admit that they have so much. Sure that chances that someone would see the interview and track them down are slim but I still think that announcing that you have millions is just asking for trouble. But when again people are willing to share their personal information so perhaps it should not be surprising that they share their bank account details as well.
Me too - but I haven't done well at investing! :D
I think it depends on what country you are from as to how secure people feel talking about it.