If I remember correctly that stemmed from the COBOL era where a punch card only had a certain number of characters across plus a blank column (the fourth I think?) for the sorting wheel to put cards in order.
I don't think I've ever adhered to a certain number of characters in C#.
Plus, in the 80s graphic cards the standard text mode was 80 columns X 24 lines.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.