2010-12-23 12:27:14Some fun graphs about comment activity on SkS
John Cook


I'm working with some cognitive scientists on climate communication on blogs and for part of their research, they asked for some basic stats on comment activity on SkS. So I generated some interesting graphs which I thought I'd share here. Some surprises, I feel.

Over the years, I've been "categorising" users as either skeptic or warmist based on their comments. So this first graph shows the # of comments per blog post, sorted by bias. Eg - how many skeptic comments vs how many warmist comments. What I find surprising is skeptic comments is not as small as I thought it would be - only around 20% of users are skeptics and yet the # of skeptic comments is not too shabby.


Whenever a comment gets deleted, the moderator specifies whether the comment was skeptic, warmist or neutral. Here is the # of deleted comments per blog post, sorted by bias. Again a surprising result. More skeptic comments get deleted but not that much more - plenty of warmist comments get deleted too.


Lastly, for some reason, the cognitive boffins wanted to know the arrival time of comments. Eg - how long after a blog is posted before the comment is posted. I thought the most comments would be posted within the first hour after blogging but it actually peaks around the 3 hour mark.


I may throw the 'deleted comments' graph up in a blog post sometime, give the readers something to chew over.

BTW, raw, live data comes from here http://www.skepticalscience.com/stats.php

2010-12-24 08:23:32
Glenn Tamblyn



I'm surprised that the peak time is even as short as 3 hours. Given different timezones around the world, I would have expected a peak of around 12 hours. Must be a lot of people spend a LOT of their day on-line. That may say something important about the degree of 'fixation' on the subject this community from both sides have.

2010-12-24 12:42:32
Daniel Bailey
Daniel Bailey
On your "Deleted Comments" graph, I suspect the reason that the warmist comments are so numerous is probably because many are replies to skeptical comments that eventually get deleted for Comment Policy violations.