[Fedora-packaging] User IDs in Core packages?

Hello, Is there any recommendation for mandating/enforcing/changing etc. user IDs in (previously) Core packages? There are some rpm packages in the upcomming merge that hardcode a specific UID in the specfile to use (I was looking at privoxy, which hardcodes the number 73). The documentation at http://fedoraproject.org/wiki/PackageUserCreation recommends fedora-usermgmt but the text seemed to imply that it were for Extras packages only. Is it implied that the default /etc/passwd file should contain the predefined values for the most important packages and the rest should find an alternative way? What is the procedure of allocating UIDs/GIDs to those system users (examples are haldaemon, apache, dbus, sshd, rpc to name a few). Should the packages to be reviewed maintain their existing UIDs/GIDs hardcoded and document it somewhere? The default values in /etc/passwd and /etc/group are the following (taken from setup-2.6.2-1.fc7.src.rpm in rawhide): #/etc/passwd root:*:0:0:root:/root:/bin/bash bin:*:1:1:bin:/bin:/sbin/nologin daemon:*:2:2:daemon:/sbin:/sbin/nologin adm:*:3:4:adm:/var/adm:/sbin/nologin lp:*:4:7:lp:/var/spool/lpd:/sbin/nologin sync:*:5:0:sync:/sbin:/bin/sync shutdown:*:6:0:shutdown:/sbin:/sbin/shutdown halt:*:7:0:halt:/sbin:/sbin/halt mail:*:8:12:mail:/var/spool/mail:/sbin/nologin news:*:9:13:news:/etc/news: uucp:*:10:14:uucp:/var/spool/uucp:/sbin/nologin operator:*:11:0:operator:/root:/sbin/nologin games:*:12:100:games:/usr/games:/sbin/nologin gopher:*:13:30:gopher:/var/gopher:/sbin/nologin ftp:*:14:50:FTP User:/var/ftp:/sbin/nologin nobody:*:99:99:Nobody:/:/sbin/nologin #/etc/group root::0:root bin::1:root,bin,daemon daemon::2:root,bin,daemon sys::3:root,bin,adm adm::4:root,adm,daemon tty::5: disk::6:root lp::7:daemon,lp mem::8: kmem::9: wheel::10:root mail::12:mail news::13:news uucp::14:uucp man::15: games::20: gopher::30: dip::40: ftp::50: lock::54: nobody::99: users::100: Thanks, -- Sarantis