>person made the following settings requests: FULLHDR, NOACK,
>NOREPRO,
>CONCEAL.

Unless you allow public access to see the REVIEW
line in your list configuaration "header," *I* would
consider ALL of the above options to be bland and
entirely unthreatening - no indication of trouble, at all.

As has been pointed out, CONCEAL is useless in
most common situations lately - but, especially if
you don't allow the public to see how your list is
configured, a savvy user might wish to take every
possible measure to protect their own privacy by
issuing a "CONCEAL," because it is still at least
therotically possible to set up a list to allow
member or even public review - isn't it?

Where's the beef against members protecting their
own privacy?