Hey, I'm your first visitor message! Cool! No one is really sure what anyone does with credits. There are quizzes you can take that "cost" credits. Consistent rumor is, depending on how many credits you already have, you get x amount per post. Some forums you get more credits per post. You can donate your credits to whomever you like and if you run into a poster named Makedde, she will make a plea for all your credits. No one is sure why, but lots of us donate to her. Apparently the more rep points you have (green thingies) and the more credits you have, the more your rep points for someone else are worth. Hope this made sense and helps ya out. Welcome to PF!