A real oath? As in 'support and defend the Constitution against all enemies foreign and domestic'? So have I. A marriage vow? Done that too. There is little else on earth that comes close to those two in importance. Masonic secrets are not about the secrets themselves as they are about giving your word to other men in the presence of God. If I had slipped the plans for a power plant to an AQ member without anyone else knowing, I would still know. It would be something I would have to live with, regardless of whether or not any harm resulted from the act. If I cheated on my wife in the middle of the desert and then destroyed the body of the co-adulterer, I would still know. It is not about secrets, it's about character. So take your 'if it's not so big a deal just tell us' childishness to Arfcom or somewhere. I have listened so a lot more anti-Masonic garbage from people I know and whose character, however misinformed, I admire than some internet scholars can toss around. To keep repeating here-say and xeroxed arguments is a disservice to the man that asked for I hope an honest answer by those who would give it.
Hell, I'm not a computer hacker and couldn't do anything with it Kypatriot, but how about you tell us your ssn, bank account info and balances, passwords, safe combination. I mean, those things are secret and matter to someone( you and yours) but don't mean shit to the rest of us who would never think of misusing that info.
All secrets are secret for a reason. Not necessarily the reason we might think, or secretly hope, if we have some conspiracy theory that needs experimental evidence.
OP, all the advice I will give is to ask a Master Mason one simple question, "What does Masonry mean to you?" If you understand his answer and it is in agreement with your personal belief system, join the Lodge. Good luck.