acct-* packages without consumers

[juippis]

We currently have acct-user/plex and acct-group/plex without revdeps (removed due to python-2), and ideally we'd like to free these GID/UIDs back to use right? Now I wonder if there are more unused acct-* packages. Hence it would be great if *pkgcheck * would identify those for us.

I'd like to invite @mgorny to share your opinions on this subject - should those IDs be released, or kept?

[mgorny]

They should be kept. The whole purpose of predictable IDs is to have them predictable, and collisions make that impossible. There's explicit tag for removed users/groups in uid-gid.txt.

[radhermit]

This is yet another feature request that requires a revdeps cache (#285) in order to be sanely implemented.

[thesamesam]

@mgorny Okay, so that's for ::gentoo. This should be useful for GURU and overlays though, right?