[QuadrupleA]

"If allspice makes food taste better, than no one who doesn't use allspice can cook well."

[mizzao]

The analogy is probably something more like:

Salt is necessary to bring out the flavor in pretty much all food. So no one who doesn't use salt has made a good meal.

Because salt is much more irreplaceable than allspice in cooking, just like writing is difficult to replace in honing ideas.