Most people don't see the hard work involved in good writing. Usually, if you do not spot any mistakes, you either encountered a superb writer or you happened to encounter a mediocre one with a superb editor. Either way, most good publishers know: Any article will never make it to print or reputable online sites without the experienced eye of a copy editor. That is not to say, a writer cannot be both. However, it would take a hefty amount of re-reading and consideration before a writer can look at his or her work objectively. So, yes, editing can be pretty backbreaking, even boring for some. But all that nitpicking will guarantee a writer's work can get really far with an editor that knows how to do the job right.