Thats very clever  I have just looked at it for Military of the PolishLithuanian Commonwealth and Likert scale and it was very interesting  It is still analysing revisions for List of colours  Would it be possible to modify it so that the user can specify how many revisions back it goes  And maybe have a default or recommended value of  for that parameter  That would make the feature reasonably quick it would also mean that long forgotten edit wars dont get a reairing which could be a good or bad thing depending on your perspective