Worst of all, you'll be making the other forum goers upset that you didn't take a minute to search before posting. If you continue to repost it you're likely to have your posting privileges suspended for spamming.
Making a new thread on an existing subject will likely result in your thread being deleted.
Please be sure to use it to look for similar topics, blog posts, or web pages that may contain the answer before creating your forum topic. Search The new search function at the top of the World of Warcraft community site is extremely robust. Therefore, we ask that you take the time to read through the forum Code of Conduct before posting. Community forums work best when participants treat their fellow posters with respect and courtesy. Welcome to the World of Warcraft discussion forums! This forum is here to provide you with a friendly environment where you can discuss all aspects of World of Warcraft with your fellow players.