Every time you cat a BSV file, your terminal beeps like it's throwing a tantrum. A record separator (RS) based file would be missing this feature! In other words, my previous comment was just a joke! :)

By the way, RS is decimal 30 (not octal '\030'). In octal, RS is '\036'. For example:

  $ printf '\036' | xxd -p
  1e
  $ printf '\x1e' | xxd -p
  1e

See also https://en.cppreference.com/w/cpp/language/ascii for confirmation.

ASCII has characters more or less designed for this

0x1C - File Separator

0x1D - Group Separator

0x1E - Record Separator

0x1F - Unit Separator

So I guess 1F would be the "comma" and 1E would be the "newline."

There are some decent arguments for BEL over NUL, however given you posed that as a rhetorical question I feel I can say little other than

ding! ding! ding! winner winner, chicken dinner!

Although BEL would drive me up the wall if I broke out any of my old TTY hardware.