You might want to check the date of the last post of a thread, before you hit reply.Necroposting in old threads is a no-go. If the OP hasn't posted in a while, or no-one is contributing (depending on the type of thread), and the last post is more than 3 months ago, please don't post in it.General rule of thumb around here is 3 months. If it's older than that - don't post.