lordv the proxy application provided by this is not a MITM Attack. The application just act as a translator who translate one communication to another communication, no attacks were involved, just spoofing.
jamstar probably because your PS3's MAC address and consoleid is not matched, note, this application does not clone or spoof mac address (or maybe, not possible within GameOS environment, since the mac address is embedded on the hardware itself) this might also raise the chance of your PS3 get ban, since the paired consoleid and mac address is not matched. Or possibly, the spoofed console id is used by too many users.
my psn is fine in aus.. just downloading all the kool free plus games this month..im so glad we got em here in aus too.. gotta say thanks sony for once.. LOL