Are there any sources for the (rather preposterous) claim that German Standard German has no native speakers? edit

@User:Kwamikagami: Please provide WP:SOURCES for your claim that German Standard German has no native speakers. Otherwise, that claim is WP:OR and must be removed from Wikipedia. Please note that WP:OTHERSTUFF does not count as a source in any way.

And please stop edit-warring over such a silly question. --mach 🙈🙉🙊 19:03, 19 May 2015 (UTC)Reply

@User:Kwamikagami: Please do not ever delete my talk contributions. If you want to keep the discussions in one place, you can add a link to that place. --mach 🙈🙉🙊 19:18, 19 May 2015 (UTC)Reply
He has answered in Talk:Austrian German#Are there any sources for the (rather preposterous) claim that Austrian German has no native speakers?. --mach 🙈🙉🙊 19:29, 19 May 2015 (UTC)Reply