Undoing Actions

I had just notice recently the amount of vandalism caused by Orihime999. I'd notice what the guys are doing to help rebuild the articles that have been cleared of material. But I have a better idea. If you click "history" on the bar below the article, you can undo various edits made by a user. I use this method to restore the article before the content was removed. But in order to do this, some articles need to have a major edit before undoing what Ori did, apparently because there's a problem undoing it. I think this maybe caused by what the article is now. If I fix the article by making some edits, and then undoing the actions by Ori, the article(s) can be restored to their former look before being ruined. Who's with me?