In technical manuals, multiple levels used to be common in headings (for
instance, I.A.2
or 1.1.1). This style has largely fallen out of practice except in a few
specialized cases
such as legal documents, for the obvious reason that they are hard to
remember.
Numbered lists are used to reference specific items. This is important for
both legal AND technical documents.
1. Can someone give a reference to a LibreOffice Guide section, around
the middle a few levels down, to demonstrate how well lists work without
numbering?
2. What does remembering list numbers have to do with which list styles
to use?