I think this is complete cobblers, to be honest. The comic is paced really well - there are interludes when the action slows down for a bit but it rarely lasts more than an issue or two. I think that makes a lot of sense - let the characters catch their breaths and interact before the shit hits the fan again. And are you really complaining about a post-apocalyptic, zombie horror story being violent? What do you expect exactly? It isn't always easy to like the characters either but it is easy to sympathise with them. It's the whole point of the book - regular people being forced into this terrible situation in which they do terrible things to survive. They are unravelling mentally, physically and morally before our very eyes and therefore frequently unlikeable. The title - The Walking Dead - describes the plight of the characters as much as it does the zombies. The only criticism I'd have of the book is that it lacks humour. People find something to joke about in the most outrageously bleak situations and I suspect a zombie apocalypse would be no different.