It just because of leaked happens the forum database May 2011 was hacked and that's the reason why those account are being activated again i recommend to everyone that those account who created 2011 or below are change your password immediately before its to late its better to become a secured now than late.
The leaked forum database is significantly newer than May 2011 (IIRC it was some time in 2015), it has simply only recently been released to the public. If you haven't already since that time, and you still have access to your account, I would highly suggest that you change your password to something
secure that is not used on any other website if nothing else.
