A very interesting survey, and a great source of inspiration. I am considering preparing a talk called "Misconceptions about subtitling conventions" if anyone cares to invite me :) https://twitter.com/JanPedersen1969/status/1625409343381245953

Misconception no 1 about subtitling conventions, norms & guidelines:
❌They are not rules.
✅ They set the priorities.
👉Example:
Longer subtitles with a complete meaning are easier to read (priority = readability).
But meaningful pauses or breaks trump complete meaning.

Misconception no 2:
❌Subtitles are not the target text.
✅ The subtitled audiovisual text is the target text.
👉 Viewers do not rely only on subtitles to retrieve meaning. The image and the sound provide more information than you'd think
(Aka the "Viewers are not idiots" rule)

Misconception no 3:
❌ You can't judge subtitles (content or form) by looking at them in isolation.
✅ Subtitles have a cumulative effect.
👉 You need to watch the whole product to decide whether a strategy works, and understand its side-effects.