Honestly, I don’t believe its fair to say “all you can eat” unless its true. Otherwise, you should put some type of detailed limit.
But attempts must have been made and probably continue.
I had a sushi binge once back in college. I went to eat lunch with my friends at the local Vietnamese place and we definitely overate. I was supposed to meet with my frat sponsor later that night and was worried that I might not get dinner before 9pm. Turns out my sponsor had planned to surprise me by taking me out to a fairly upscale sushi place for dinner since he knew I loved it. We get to the restaurant and he orders “the boat” which contains like 50+ pieces of sushi (for just the two of us). When the food came out I was worried I wouldn’t be able to eat but turns out I can make extra space for sushi. I demolished that boat and ate more than my sponsor. He was legit impressed when I finally admitted that I had eaten a big lunch before hand.
I honestly don’t remember the name of the place. It was almost 20 years ago.