Comment by jonahrd

Think of it this way. Say you were trying to piece together the life story of Stephen Hawking. You'd be happy to come across an unknown/unpublished paper of his, which would be a new plot-point to demonstrate his intelligence and talent in a specific way that was previously unknown. Sure, it may not be his best work. It may not even be that different from other work going on at the same time. But because we are interested in Stephen Hawking's story specifically, it would still be a very valuable piece to keep track of. If you later found out it was an imposter's paper, it would be worthless.