So I won a humble bundle game that was cheap before they made the switch where people can give them away, anyways this guy gave me a free steam copy of this game and want to know if I can redeem it or legaly I'm not supposed too? I know nothing about humble bundle except its for charity.
I never read any rules or anything on that site as I never use that site.
Technically you're not suppose to give out keys. It's in their little TOS dealio I believe, but no one ever abide by that and there was no way to enforce it. That's why they link your Steam account to what you buy know. However you can still give stuff away as a gift URL.
Point being don't worry about it, redeem it and be happy.