I known.
I don't know how the graph creator made it, but the graph should have two x-axis scales, right?
The current one is likely for un-banned newbies, I guess.
There are two graphs overlap each other, but it should have two x-axis scales.
Only the lighter color represents banned Newbies, so the small top of the graph.
It would indeed be better to draw them at the bottom of the graph.
Or if only one x-axis scale used, the graph (lighter color) for banned newbies should be in the bottom, below the darker one, as you said.
Yes, I used the same X-axis scale in the chart above. As a result, I aggregated the number of banned and non-banned users.
I can create a new chart that shows only the lines with a transparent background. In this case, I will not aggregate the values, so the line showing banned users will be drawn below the line showing non-banned users.