DeleteFB: Selenium script to delete all of your Facebook wall posts
I don't trust the "delete" button to scrub it from FB's database.<p>I'd be slightly more confident (<i>slightly</i>) that editing the post might cause the core data in the db to be updated, however. In which case, I think the more effective script would be one that goes through all of your FB posts and scrambles them, or replaces the text with gibberish.