…when people get personal regarding writers whose work they don’t like. When people get offensive regarding people purely because they don’t like their work. There is a difference between saying you hate someone’s work and saying that you hate that person. Please think about this. Those are thinking, feeling real people who are simply doing a job in the way that they believe is the best way to do it. Nobody purposefully writes bad comics, and there’s a good chance that there are people who love the very work you hate. Oddly, writing, like all art forms, is fairly subjective.
The only time I might consider this not to apply is if that particular writer’s work is actually deeply offensive (if, for example, it’s extremely racist or homophobic).