I think all the discussion is a learning chance, and a good experience sharing for me!!
Yes and for me too.
Yes I fill my dishes every night with what I have come to learn is each chins requirement for a 24 hour period.
Around 1/4 -/1/3 cup for most.
And yes if when I pop in during the day I see an empty dish I will refill.
As the kits are growing they will start to consume more and more.
The biggest reason is the feed can get damp left in the dishes to long and they won't eat it. So to keep it fresh for them I fill once a day.
I have never seen any signs one was over eating.
Most will eat their fill unless their is something wrong.
Just as us no 2 chins will eat the same amount of feed each night. My adult chins range from 500 -1000 grams and up with pregnancies.
Some chins will eat more hay than pellets, while some eat more pellets.
I have a few very hyper chins that eat like horses but are normal at around 600-700 grams.
My heaviest seem to be my laziest chins.
Unless I see a real issue with one, like weight loss, or lethargy I wouldn't see the need to monitor their intake that closely.
They come in all different shapes and sizes, and their intake will reflect it.
Though I always make sure new chins brought in and kits are eating well before they get introduced to the herd. Or in respect to the kits before they are re-homed.