It would be very useful to have a scale shown on the ordinate axis (Cartesian ordinate) (y-axis), in order to have a rough order of magnitude of the ''size'' of the edit being reflected in the bar graph. Was it 10 chars? 100? 1000? 5000+? etc.
Taken from a request on the extensions help page: https://www.mediawiki.org/wiki/Topic:V4yoe4b6k83r1gz6