A user had plagiarized the P.I.N.G.A.S. article from Harkipedia, as well as the P.I.N.G.A.S. Soldiers article (as the The P.I.N.G.A.S. force, but if you compare it with the original from Harkipedia you can tell).
After I marked the articles for deletion, this user then proceeded to re-plagiarize the articles as blog posts, complete with categories.
What would you say that I do? I'm thinking that I should delete the plagiarized articles and remove the categories from all the blog posts, but it's your call.