Think of it as a newspaper title. There's an implied "XYZ Considered Harmful [by Experts]." That is the original context, a letter written by Dijkstra to the ed

Think of it as a newspaper title. There's an implied "XYZ Considered Harmful [by Experts]." That is the original context, a letter written by Dijkstra to the editor of Communications of the ACM, where the editor penned the title.