Italics works fine for quote IMO

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I propose using four underscores as a delimiter of a quote block, like asciidoctor, in addition to italics. I think it looks better than the markdown way of using ">" in front of a quote as it can get quite cumbersome and ugly when you're quoting multiple lines of something. However, I generally enjoy using markdown more if it works on a website. It just looks ugly IMO if it doesn't.

I think you'll find the practice of prefixing quoted lines with ">" originated with old Unix email and Usenet.