good idea in theory, but no one is going to spill the beans on how they make their money
you know if you share them here, then 100 other people will open up adwords accounts with the same exact keywords and no you will be paying 3x the cost and lose money.
I could easily share keywords I'm bidding on that bring in $500 to $2,000/mo. but what's the point because that will leave me to $0 and 20 other people to making $100/mo.