Simply putting your purchase off from March until April does nothing other than reduce the profits for March and increase them for April - the money has just shifted... and THAT is assuming that a significant population would do as requested...
which won't happen.
Sorry... it's just pissin' in the wind...
No, they are not targeting the wrong people. They are trying to spread the word to those people that really buy those stuff. So if anyone is in, at least let your friends know about Black March 2012. Just a simple message on your MSN, Facebook, Skype, Twitter, Google +1 or anything related to Social Media.