Thank you so much for this super useful plugin.
Unfortunately, it's not working at all for me :
I de-activated all my plugins, switch for twentytwelve and I have one article (to try) with an sourced flickr image (<img src="http://farm.flickr...). When I run the script, it says that's it's ok but when I see / edit my post, the picture is just deleted.
Any help much appreciated!