Not necessarily. Hopefully the publisher never canceled unused keys. It happens here and there from time to time.

What a lot of folks around here do is post something like "I got this in a bundle a few years back, kindly request this giveaway be deleted if there's any problem with the key. MOST users of the site are cool if things like that happen. If not you might have to go buy someone a $10 game to keep your account from being suspended. On the upside, it's not a $60 game!