I know it might be harder but in the long run, it could mean fewer dead links so few requests to fix dead links, and less reposting. And when links die people can't access videos they love it's really not asking that much to be able to access things that have been posted.
On some of the older threads there are whole pages of links that are dead why wouldn't you want to prevent that? Everyone is part of this community and just wants to make it better and more pleasant even if that means more effort.