Dear Maintainer,

If you ^Z dd status=progress, then resume it,
it will issue a slew of updates to the status line;
script shows this roughly corresponds to 1 update per suspended second,
and the status is dumped after /every/ I/O until the "back-log" is cleared.

Recording of a reproducer attached, best visualised with
  scriptreplay <(sed 's/\r/&\n/g' < typescript) -t <(sed s/179/0/ typescript2)

There's no reason to do this, it looks weird,
and may negatively impact performance.

Best,