Some new posters may not be aware their post could be seen as spam. A week right off is a harsh punishment. I think that if the post is reported by enough people, the area mod should have a review section it's listed in where they can look it over and send a mail to the poster telling them that the next consequence would be a ban. I think a one or two day ban for the first offense after that is more reasonable, and if it happens again, give them a week, and if they still continue, ban their IP from the server.