I'm shocked that Tops earned #1 -- they did a remodel a few years ago and started taking reservations (and turning people away during busy periods if they didn't have one), and it's much less of a diner and much more of a restaurant nowadays.
Also, the Bendix Diner is closed, likely permanently, because of fire code violations.
Yup! That's what I was thinking about. In fact I did read this right before posting (though I had found it at https://doc.cat-v.org/bell_labs/utf-8_history) but only to validate that it had been in a NJ diner, so I missed my confusion of UTF-8 with Unicode.
https://www.tastingtable.com/1203923/best-diners-in-new-jers...