See security bugs 163817, 168449, 168529.
Sorry for the inconvenience. Feel free to add it to your package.keywords file in /etc/portage if you want to keep using it.
Thanks Steve -- gentoo-dev@gentoo.org mailing list
Wordpress has had a few security issues lately, so I'm dropping all stable
keywords on affected arches (amd64, hppa, ppc, sparc, x86).
