The PMDX hacking incident started in 2006 because someone hacked him then, then he was recovered from that hacking.
Later in 2009, is when the real PMDX hacking incident happened. All of his videos were deleted by the hacker by November 22, 2009 and replaced with other inappropriate things.
This tells you why the channel was banned and replaced with ElPivotMasterDX.
The hacker also left comments and changed the bio.