From the announcement in c.o.l.a.: To facilitate communication among users
of locus, I set up a mailing list, locus-list, for discussion of (you
guessed it) all things concerning locus: announcements of new versions, bug
reports, suggestions of new features, practical experiences, comparisons
with competing products etc. etc. This is an open, unmoderated list
and it's expected to be low-volume.
In practice, I post announcements and nobody else posts anything.