I believe that DVDfab creates backups that will only work in certain software players and the PS3. In order to do this, it patches the software players (or, in the case of the PS3, creates a type of "boot disk" necessary for each individual movie). I may be confusing DVDfab with various other software options (I no longer use bluerays because it's to stream backups to my Roku, so I'm not the most informed), but the point is that no company has come up with a truly effective solution. Cinavia-protected backups still can't be played on any Cinavia-protected standalone blueray players since the protection was introduced, and as far as I'm aware, that's most if not all blueray players introduced in the last few years.
My question is how do we know this guy is telling the truth? It could all just be a giant prank, couldn't it? Not that I'm doubting him. It's just that given how notoriously difficult it's been to remove, it's an "I'll-believe-it-when-I-see-it" situation. As I said, I no longer use bluerays, but I believe DRM truly hurts the consumers, and I want to see it gone just as much as anyone else.