Iconscraper is back at http://www.journalpics.net/. This site takes both icons and animated gifs from LJ picture feed. The site is advertised as 'Pictures for your journals or blogs'. They have also threatened to sever links to the source posts so no-one could be credited even if they wanted to do so.
Anyone not already opted out of the picture feed should do so right away if you want to protect your work.