User:Saibo asked me to forward it to this list:
I saw the current WLM central notice banner uses the "poty stack": aside from being not really a suitable pic for WLM the usage of that image is a copyvio. The authors are not mentioned on the WLM page (where the banner links to) and not even a link to the authors is available. The topmost, most visible image is copyrighted (but, of course, freely licensed).