Be sure to read the original site. Although Stuart Rojstaczer doesn’t have much data from Community Colleges, he does show that grade inflation has not struck these institutions with equal force.
This trend must continue—not indefinitely, of course: it stops when all earn all As all the time—as long as enrollment increases. The greater the percentage of the population who attends, the more we must see either grade inflation or class simplification or both. Rojstaczer also identifies the “student as customer” grade-inflation driver.
All this is on average, of course. There will still be plenty of isolated schools and courses where students are held to a rigorous standard. See Rojstaczer’s plot on the difference between liberal arts and sciences, for example.
Interesting twists and turns to the curve, no?
More perhaps later. Busy day today.