If the source is already in text (perfectly accessible), why should we make an image out of it? That's like saying let's email a document, but instead of the original doc file, let's print them out, scan, and then send the pdf of those images instead.

That is not a correct analogy because printing and scanning a document is less convenient than just forwarding the email. But here, most people are comfortable taking a ss and share it. That's what they're learnt. So they keep doing that.

My man, you just don't know how crappy OCR can be with non-latin alphabet writing systems, especially Chinese characters.

That's why the OCR tools have to be improved. They should atleast be able to read the top 10 most used fonts in a language without issues.