If it weren't in log it would be a useless chart

If it weren't in log it would be a useless chart

Thank you!!
I guess the academic side of me says there should be a label on the axis to describe that it is log. but i admit this is practically evident/obvious if you have minimal experience and look at the values. If i showed this to most non-finance / non-technical people though they would have to be explained that the y-axis is log.
Anyways i agree, linear is useless. Just being pedantic or sthing
Really I should have provided a link to the chart: