I wonder if they ever link up what console Id's have linked with PSN Id's in the past.
Say for example you sold your old ps3 that was used with your PSN account online before any of the jailbreaking happend.
Then whoever purchased it Jailbroke or installed CFW and Sony has linked that PSN Id to the Console ID
Or maybe your old PS3 got the YLOD and you sold it with the HDD, new owner repaired it but didnt bother deleting the old accounts out and Jailbroke or installed CFW.
Cechc03: Ylod repaired 18/01 Kmeaw 3.55
Cechc03: 3.55 OFW, Ylod repaired 26/01
Cechc03: 3.50 OFW, Needs laser.
Cech2003b 3.15 OFW Not modding till warranty runs out