On 29.09.2013 10:04, Piotr Konieczny wrote:
I know of the categories, but the problem is that they do not seem to be comprehensive. I can estimate, based on them, that there are at least 150k or so editors who were banned for vandalism, but it seems many vandals do not make it into those categories, suggesting this number is underestimated.
Still, we should be able to get some estimates. We know, for example, that something like 5 or 6 million of accounts have made 1+ edit on English Wikipedia. How many of them were indefinitely blocked? This should give us some idea.
Alternatively, we know how many accounts make an edit to Wikipedia every given timeframe. About 100,000-120,000 editors make at least one edit to Wikipedia each month. If we knew how many are indef blocked in that period, that would be another useful estimate.
-- Piotr Konieczny, PhD http://hanyang.academia.edu/PiotrKonieczny [2] http://scholar.google.com/citations?user=gdV8_AEAAAAJ [3] http://en.wikipedia.org/wiki/User:Piotrus [4]
I thought the bulk amount of vandalism comes from IP, and actually filters can provide some info on that.
If we switch from research to personal experience, I checked all edits on the Russian Wikivoyage since the beginning (October 2013). There was only one vandal who registered two or three accounts and was indeffed, but IP vandals and spambots are blocked on a regular basis, like every one or two weeks.
Cheers Yaroslav