Community forums work best when participants treat their fellow posters with respect and courtesy, so we ask that you take the time to read through the forum Code of Conduct (http://us.battle.net/en/community/conduct) and guidelines (http://us.battle.net/wow/en/forum/topic/15252595157) before posting.
The search function at the top of the World of Warcraft community site is extremely effective and robust. Before you create a new forum topic, please be use it to search for similar topics, blog posts, or web pages that may contain the answer for which you are looking. Making a new thread on an existing subject can result in your thread being deleted or, if you continue to re-post the same content, the loss of your forum privileges for spamming.
The forum rating system can be used to promote positive discussion, demote unhelpful comments, and even report posts that violate the forum Code of Conduct. By hovering over a post you'll be presented with several options, including a "thumbs up" (Like) and a "thumbs down" (Dislike) icon. Clicking the "thumbs up" icon will rate the post up. If enough people like a post, it will gain a Highly Rated status and appear at the top of related search results. Highly Rated posts will also have a highlighted background. Clicking the "thumbs down" icon will expand a drop-down menu which will include "Dislike," "Trolling, "Spam" and "Report" options. "Dislike" will rate the post down. If enough people dislike a post, it will be darkened, and with a lot of dislikes it will be hidden completely. You can also quickly report a post as trolling or spam, or use the report function to fill out a more comprehensive description of a violation.
Please note that you can only rate each post once. Use your power wisely to help foster a positive and helpful forum community.
Have fun posting on these forums, and good luck with your adventures in Azeroth!