has any1 heard of super cropping?

Some1 once told me that when the plant grows up after each internode you can simply pinch the plant stem. He said u only pinch a little to brake the inside of the stem without breaking the outer skin. This is meant to give little knuckles all the way up the plant to promote water intake.

Personally I think he was talking bull but a would like to hear if any1 has done this before and if it works?