joe now installs docs by default in /usr/share/doc, so the old rm /etc/joe/doc now does nothing. There is also now a --docdir option. ebuild patch that works for me below.
Created attachment 177592 [details, diff] joe-3.7-ebuild-doc.patch
+ 07 Jan 2009; Patrick Lauer <patrick@gentoo.org> joe-3.7.ebuild: + Small fix for docs, fixes #254007 Thanks for the patch!