I can appreciate that this is a "Reproduced Snapshot". I don't see anywhere that clarifies what it means, but I assume that this means it's not a simple copy/paste of text, nor a screenshot.

The reason for avoiding both of those is to avoid passing through watermarking that can reveal how the data was leaked.

Text can be watermarked by including unicode characters that look identical to ASCII characters or including invisible characters like zero-width spaces. Copy-pasting text will keep those characters.

Images from screenshots can be watermarked by having subtly differently colored pixels, subtle differences in text spacing, etc.