To follow up to this, I am planning on package.masking sys-libs/db 4.0 and 4.1 sometime in the near future, to be followed up by their removal in ~30 days.
If this poses a problem to you, a package you maintain, one of your family members, or some exotic animal you may or may not own, please let me know. Caleb -- gentoo-dev@gentoo.org mailing list