Forum:Edit "Score" in Recent Changes?

Interesting question. I've been getting the hang of editing and contributing for the past month and learning the ins and outs of a wiki and I can't seem to figure this out. What are the +green and -red values in the edits on the recent changes list? Also, where can I find a list of all the badges one can put on their userpage? -- 00:35, 24 October 2010 (UTC)
 * The green and red numbers refers to a comparison of file size. For example, red values mean the size of the article has been decreased, while green indicate the size has increased.  When someone adds a section or a lot of info to a page, you can tell because of the large green number that appears. Ddcorkum (talk) 00:37, 24 October 2010 (UTC)
 * The numbers are the amount of characters added or removed. The "badges" can be found at Wowpedia:List of user templates.-- 00:39, 24 October 2010 (UTC)
 * Awesome. I feel kind of retarded thinking it was a score lol. Thank you both for your help. -- 00:42, 24 October 2010 (UTC)