There are certain zines I've just come across recently and now love. But of course back issues are impossible to find.
If you had a copy in your collection of a zine that somebody else really wanted, would you be willing to trade or sell it?
I'm guessing for most people it will depend on the specific zine. Some people probably cherish their collection and wouldn't want to part with any of them. But it's also likely that some people would be glad to share a zine they love and pass it along.
I was thinking of starting a new Group where people can post wishlists of theirs and see if others can help them out. I just don't know if it would be successful at all.