How can one tell the difference between a lunatic and a fantic? The fanatic certainly can't. Every single perpetrator in my list was convinced to their core that God Is On My Side. Ask UBL -- are you a lunatic? Think he'll say "Yep!"? Ask the more than one assassins of abortion doctors (a practice, BTW, I abhor) if they are lunatics. Think they'll ask the way to the rubber room?
But the inclusion of Luddites in the original post was rather odd. I think we can give Luddites a pass.
So, if you're a Luddite, I think you have a case to be insulted. OTOH If you're a Luddite, what are you doing on an Internet Forum?