> Maybe colleges and scholarships that make admission decisions based on adversity can someday objectively measure it by DNA methylation. Also for reparations or welfare benefits.

> A low methylation score could be interpreted as a call to mature a child's tissues more rapidly by the curated application of adversity.

The paper didn't even find a unidirectional correlation between methylation and adversity. They say right in this article that some adversity was correlated with changes they would expect to see with slowed aging (which does not mean adversity slowed aging, it's just a marker).

Those markers are also correlated with many other factors like the size of the animal.

It's not a marker of adversity.