A couple of comments:
- You do NOT need to use the newgroup command when you decide to
subscribe to a new newsgroup.
In yarn.doc: "When the import program finds a newsgroup in the
packet that is not already in the news base, it adds the newsgroup"
- The only time I use a newgroup command in Yarn is when I subscribe
to a new mailing list, and am creating a pseudo-newsgroup to receive
MAIL from that mailing list.
- Sounds like you are using Souper to fetch news from your ISP. Your
suggestion saves the bother of typing in a newsgroup name into the
Souper newsrc file. But my ISP lists more than 15000 newsgroups!
It would take me longer to select a name on such a list, than to
manually edit the file that tells Souper which newsgroups to fetch.