1. Don't give your bank accounts to people ever.
2. You choose what information you allow visitors to this site to view.
3. Members email addresses are not visible to other members. They would have had to use a contact form to get in touch with you via this web site.
4. TOS #6 applies "You should not give out personal information which may lead to your being identified, or contacted in person, by email or other means. If you chose to do so, then you also accept the accompanying risks. Aliases and the use of alternate email addresses are encouraged."
I think you are linking something that happened to you in the real world with this site and the link is tenious at best. There is nothing in your profile which would have allowed someone to do this to you. Someone might have been able to contact you via forum email via your profile, but you would have to give them your personal information on your own. Nothing given here would allow anyone from this site to identify you, who you bank with, or access your bank accounts in any way. We do everything possible to protect our members privacy.
We feel for you because of your loss.