If an Article doesnt pass copyscape on a Blog, should you Leave it or Delete it? Im not so sure on this one.. -C
Its better to close them as you will be punished by google for duplic content and at the same time if you are caught by the owner of the article you will again be sued.
if you want to work with google adsence or like other service then you should make your content unique . otherwise this blog or site will never scored in seo or backlinking
Keep it, content duplication penalty did not existed - if you not believe me, try searching google for "google duplicate content penalty" then decide for yourself.
Thanks for the comments..... i think next time ill just make the article unique , rather than delete it.. -C