This new model proposes that there might exist different roles which categorize users who participate in the discussion threads.
This is most likely due to the fact that initial comments carry more information and are less likely to consist of short agreement/disagreement/thanks expressions found later in the discussion threads.
The higher values of the average and maximum of PDF are most likely due to the fact that the comments starting a thread carry more information and are cannot consist of short agreement/disagreement/thanks expressions found later in the discussion threads.
Registered users will be able to edit pages, update entries, report incidents etc. Unregistered users can freely participate in the discussion threads at the bottom of each page.
Whenever the subject was unclear, we read the discussion thread in detail, and searched in other data sources (for example, wiki, websites, related bugs and source code commits referenced in the discussion) for additional clues about the topic discussed.
