I tried it for curiosity..
Also, I try to eat a wide variety of foods including many kinds of variety; I don't think I eat many flower parts.
And, less waste.
Epicurious says:
"... packed with nutrients, including vitamin K and potassium."
Also, flavor - soups and stocks and such along with the cob.
If someone were to consider eating lots of it and/or has medical concerns, it would be good to check out the medicinal effects. Various other sites mention it can be good for kidney issues (NOT all kinds of kidney issues - most of the sites don't say that part), reduce water retention in the body, treating high blood pressure and gouty arthritis (uric acid builds up in the blood and causes inflammation in the joints), metabolic syndrome (which is
obesity, hypertension, hyperglycemia, and abnormal levels of triglycerides and high-density lipoprotein cholesterol) and assist in weight loss… use in chinese medicine.