You are focusing on newbies in your example, and maybe that rank is the most obvious to talk about low quality posts, exceptions apart. But even among Legendaries you can usually find users who sometimes post ideas which are more meaningful than others, and viceversa. In fact, in my signature's campaign, the Manager warned us that it seemed that some participants got too relaxed. But it is true that it is one of the best campaigns in the forum, and that not all managers share the same high standards, or at least not for all campaigns, which is also understandable (if you'll got rewarded a few shitcoins for your participation, if ever, what quality could you be asked to provide!?).