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It would be interesting to be able to see the stats from the other side of the report TX: Something along the line of the number of reports per board (at least the main ones), and even perhaps by the rank of the reported related account (although the rank may well change over the one year period being analysed).
The above would provide an overview of where the reports take place, and a rough idea of the reported ranks.
Note: Ideally we’d add an overview by reason (i.e plagiarism, low value, etc.), but since reasons are not typified, I figure the latter would not be feasible.