slimvirgin@gmail.com stated for the record:
The anonymous posters on Usenet are not published authors just because they post to Usenet. So yes, any editor who wanted to delete material sourced to Usenet would be well within their rights - except where it's being used as a primary source about itself.
Such deletion would clearly be against policy. As http://en.wikipedia.org/wiki/WP:NOR#What_counts_as_a_reputable_publication.3... states, "When dispute arises regarding whether a publication is reputable, you can attempt to get more editors involved and work toward a consensus." Notice that it does not state that a single editor taking a hardline zero-tolerance stance can delete material simply because that single editor does not feel that it comes from a reputable source.
-- Sean Barrett | No time for goofing off, I sean@epoptic.com | got dawdling to do! --Tigger