Lulz has a problem with someone else going after Sega, but thinks its all peachy when they're the ones behind the wheel exposing the faults? Either they are jealous or their intentions aren't to force people to take responsibility for poor security.
I think that comment of theirs was meant as irony. The Dreamcast is known for its radical fanboy community, so they made a comical reference to that by mentioning the Dreamcast and "aligning" themselves to Sega.
Their intentions aren't to force people to take responsibility for poor security, and they never claimed otherwise: http://pastebin.com/HZtH523f