not trying to be mean or anything, you should always look at the date before posting if its something deep in the pages or if browsing threw someone's posts list (cause the user could not be active anymore and could have been from a wile ago, like this one), if its a few months (not being exact) to a year old then start a new topic with a link to the old one and explain why you started a new one (if it adds something useful to the OPs post), lesson learned.
but to just add what you did didn't warrant a new post or to grave dig it