If you don't read the Forum post you're going to comment on, don't even bother to try and comment. The whole point of the comments section of a Forum is to elicit meaningful discussion and debate. In fact, try to think of it as a digital debating chamber! By reading the Forum post you will actually be able to leave a comment that adds value and get an insight into the topic at hand. Any experienced Commenter(and it's these kind of Forum you want to be commenting on) will have a sixth sense for identifying comments where the submitter hasn't even bothered to read their hard work. Neglect this step and you will find yourself floundering in the spam bin