I can only suggest that you should make a little effort to look at the old archives before starting a new discussion topic, so that you avoid with the same post. for that if indeed what you want discussed or asked is not there, please create a discussion topic that you want to discuss.
If that information is outdated, and you want to ask a more the current stance on the topic then that's usually fine. As long as its bringing some sort of constructive discussion, and not just repeating what has been said before its fine to have duplicate threads as long as they are fairly spread apart, and not ongoing discussion at the same time.