I think I mentioned this to
a while back about adding a captcha code upon signing up to this site.
It would be something as simple as the picture of the scene status banner and below it 2 basic questions along the line of:
"Which of these ps3 models cant be downgraded"
(2 radio buttons: 3k slims ,4k series) ~ its a trick question
"What FW is required for CFW"
(3 radio button options: 3.55, 3.65 or 4.25)
If they cant answer those, they get kicked from sign up until they learn how to search, rather than just ask ask ask.
It might also prevent spam bots.