> ... Is this really common?

Only among people who don't code. A non-coder doesn't know the difference between a block of code, and a picture of a block of code.

A woman visits the studio of a famous artist. She says, "That woman is all distorted!" The artist replies, "Madam, that is not a woman, that is a picture of a woman."

Sadly, I wrote this article about people who are coders, whom I would expect to know that I would prefer the text rather than a screenshot.

> ...I wrote this article about people who are coders ...

Maybe vibe coders. :) People who have never been in the opposite predicament.