The point is that a "quotation dash" (i.e., a dash that precedes a quotation, used in place of or accompanying quotation marks in many languages, as your link e

The point is that a "quotation dash" (i.e., a dash that precedes a quotation, used in place of or accompanying quotation marks in many languages, as your link explains) is not the same thing as the dash used for quotation attributions. An em-dash is an alternative to a proper quotation dash when used to precede a quotation, but is generally itself considered the proper dash for attribution [0]. [0] https://en.wikipedia.org/wiki/Dash#Attribution_of_quote_source https://en.wikipedia.org/wiki/Dash#Attribution_of_quote_sour...