Sorry for the delay (again).
I wanted to post more things quite some time ago, but other stuff was coming into my way.
First, because the last plot was not very easy, another representation (hopefully easier):
Birdjaguar also wrote an explanation for it:
Birdjaguar said:
Explanation: This chart will tell you how frequently moderators infracted individual posters during 2011. The colored ovals represent individual moderators; the vertical axis the number of times a specific posters was infracted by a moderator. The size of the ovals are relative to the number of infractions at each level. for instance, the Turquoise mod issued 189 infraction during the year. The vast majority of those infracted received only one infraction from that mod during the year. The smaller oval inside the large one is at the 2 level shows a relatively much small number of posters that were infracted twice during they year by Mr Turquoise. As we go up the chart for Mr. Turquoise, we see the ovals get smaller until they are just black points. Black points represent a single individual. So, Mr. Turquoise infracted one poster 10 times, a different poster 7 times, another poster 6 times and yet one more 5 times. These 4 individuals accounted for 28 of Turquoise's 189 infractions (10+7+6+5).
What this chart makes very clear is that the overwhelming number of infractions issued went to individuals who did not receive another infraction from that mod.
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Now, some answers to the asked questions (the same stuff will in most cases appear again in the text at the end, because I'm too lazy to cut it out there).
I'm surprised multiple people don't report the same posts more often.
We had 735 bot related posts, from which 146 were at least reported twice (in total 435 multiple reports).
It's way less for posts by normal users. We received 6557 reports of posts from regular users, 369 posts were reported at least twice (in total 499 reports were related to already existing reports).
What was the most reported post that wasn't infracted? E.g. if a post had 10 reports but you didn't infract. What post was that? I'm assuming that isn't PDMA since, well, there was no action
This comes together with the highest amount of reports per post, which was in that case 11 reports and no action on that post. Okay, all 11 reports were done by the same user (and 10 of these within 5 minutes).
What fraction of infractions came from reported posts vs posts that mods just stumbled upon and found infractable?
We infracted 2167 posts, 1482 (68%) were reported, 685 not (32%).
Compared to the total amount of reports (6557) this seems low, but like already mentioned, not all reports are related to problematic material, and even if, a moderator might decide to infract a single post with more points instead of several infractions with lower points.
Also do the numbers include overturned infracts?
They did, but the amount of 79 reversed infractions in more than 2000 is pretty low.
What is the overall report/infract (that includes warning) ratio, and ratio per forum?
Also, is it possible to see where the infractions were handed out?
Now the main text (since it directly addresses this):
Infractions per forum
2167 infractions for regular users were handed out in 52 different forums, most were again issued in the Off Topic area (1215 infractions or 56,07%), followed by Civ5 General Discussion with 426 infractions (19,66%). All other forums were well below 10%, with the Recycle Bin as forum with the next most infractions (93 infractions or 4,29%).
The number of infractions for the top 2 forums correlate with the number of reports for these forums (51% and 19%, respectively).
130 infractions were not issued in a forum, but on the users profile.
From all of these infractions 79 were reversed.
From the 2167 infracted posts, 1482 (68%) were reported, 685 not (32%).
Table of every forum with 1%+:
The threads with the most infractions (table of 10+ see below) come also out of these forums. 6 of these 11 threads are closed.
The obvious outlier is the Civ5 rants thread, which accumulated nearly twice as much infractions as every other thread. It's an outlier because it's intentionally used for rants, which in this case just accumulate more. To be fair: If it was a regular thread, it would have been closed long time ago.
All other threads are about obviously controversial topics, which is not very surprising.
Most infracted thread outside of Civ5 GD and OT was the topic "RFC Europe playtesting feedback thread" in the RFCE subforum with 8 infractions (IIRC triggered by a single troll) and the thread "Annoying trolls in here" in SF with 7 infractions, followed by The 'Best' Ancient General in World History and Funny Pics XXII (both 6 infractions).
About the reports
1091 regular users were reported, 622 of them only once, 160 twice (does not include bots). This resulted in total 7292 reports (which include 735 related to bots). From the 735 bot reports 146 were reported at least twice (in total 435 reports were related to existing bot reports).
From the remaining 6557 reports for regular users, 369 posts were reported at least twice (in total 499 reports were related to already existing reports).
The most reported posts were reported 11 times (4 posts in total). In one case a user was not satisfied with the mod reaction and decided to report a single post 10 times within 5 minutes, 1 was related to these image spammer/troll who posted with large images, the two other were obvious advertisement threads.
"Funnily" that rape porn bot which appeared once is not the most reported item (probably due to fast moderator reactions and multiple threads).
The user which was reported the most times accumulated 87 reports, followed by two users with 75 and 73 reported posts. The posts from 28 people were reported at least 20 times. 23 of these people do mainly frequent the OT forums, 3 the Civ5 forums. 49 other people were reported between 10 and 19 times.
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Anything else anyone might be interested in?