[common] On Usenet, a {posting} generated in response to another
posting (as opposed to a {reply}, which goes by email rather than
being broadcast). Followups include the ID of the {parent message} in
their headers; smart news-readers can use this information to present
Usenet news in `conversation' sequence rather than order-of-arrival.
See {thread}.
[glossary]
[Reference(s) to this entry by made by: {cross-post}{parent message}{reply}{upthread}]