Yesterday my orkut account was blocked by mistake. When I wrote to the support, they immediately restored it and sent this funny mail :)
To keep orkut.com a trusted community, we have implemented an automated system that aims to catch members who are trying to abuse it. When someone is caught, they are temporarily jailed. We try to catch only the bad guys, but occasionally innocent folks are put in jail too.
We apologize for any inconvenience this may have caused and can assure you that your account has been unlocked. We are working hard to make our jailing system smarter, and we appreciate your patience as we work our way up this learning curve.