Post count is irrelevant anyway.
Skill is measured by the amount of ragequitters you produce. The formula looks like this
whereas delta t stands for the ragequit per timeunit and M is the skill cubed, and 3 At is the skill of the enemy times his balls under consideration of his own ragequit ratio.
It might aswell be used to calculate the lifespan of a Black hole, but thats completely irrelevant anyway.