I'm confused about what you mean by "generate traffic that the writers cannot handle". The anonymizing of articles raises several concerns.
The original poster or contributing users need to be recorded for permissions and blame assignment regarding SPAM. While it would be easy to remove that bottom section of the article, the History tab would still need to reflect who made specific changes. As the History tab is permissible on a forum-by-forum basis, you should be able to hide any contributing user information from non-moderators.
It is currently possible to remove the post bottom info by setting some $show vars in your the article postbit to false. If this is an immediate issue for you, I would recommend doing something like this. You can check the namespace, and set the appropriate variables to false if it's the right one.