Mod, two things. Using a pseudonym is not the same as posting anonymously and, clearly, recommending a book or advising that the content of a book might be offensive to some is not only l’toeles, it also meets the Chofetz Chaim’s requirement for purity of purpose, unless, of course, the commenter personally knows the author or the publisher. Blanket condemnations of classes of literature may be offensive but repeating common knowledge does not, in itself, constitute lashon harah. For instance, saying that Bernie Madoff is a thief cannot be l’toeles because he can’t steal anyone’s money any more, but it is common knowledge and therefore not lashon harah.
Look, I have no personal axe to grind here and I will not add my voice to the chorus making snide comments. But one must recognize that just because a comment is rude doesn’t make it assur. IYou mods have absolute authority to edit or delete anything you want but I think the edit of my post was unwarranted