There is a probably-'80s document that I would like to find again, written I think by some university as an ‘introduction to Usenet’ for students. It had a sect

There is a probably-'80s document that I would like to find again, written I think by some university as an ‘introduction to Usenet’ for students. It had a section I particularly remember about focusing discussions on the topic of a newsgroup rather than on the newsgroup. Anyone recognize this? (Today is Tuesday the 11389th of September 1993.)