It makes me a bit worried to read this thread, I would've thought its pretty common knowledge why CSV is horrible and widely agreed upon. I also have hard time taking anybody seriously who uses "specification" and "CSV" in the same sentence unironically.

I suspect its 1) people who worked with legacy systems AND LIKED IT, or 2) people who never worked with legacy systems before and need to rediscover painful old lessons for themselves.

It feels like trying to convince someone, why its a bad idea to store the year as a CHAR(2) in 1999, unsuccessfully.