Here on my fanpage I\'ve added my small app, that makes it possible, that fans can upload photos to a special photo album of this fanpage.
It\'s possible, cuz I use
You could delete the news feed stream post immediately after upload (if its not returned when you create it). If you call the graph api: https://graph.facebook.com/269434846409322/feed?access_token=... you can get a list of feed posts and then you could issue an HTTP DELETE to the item you want to delete, like https://graph.facebook.com/269434846409322_269690926383714.