This is the bowl that I made yesterday. It’s leatherhard and I turned it upside down, re-centered it on the wheel and trimmed a foot ring into the bottom.
The foot ring will help keep the bottom of the pot flat on the kiln shelf during the firing and limit warpage. It also makes the foot area into a little pedestal that presents the pot better. It elevates it off the table surface and makes it appear more inviting. It also gives me a place to grip the pot when I dunk it into a bucket of glaze.
Foot rings are an important part of the pot and the potter cannot ignore the bottom of his work!