Deletion of Youn Wha Ryu

Comment: Clear stone, every bit of information in the world is useful to someone. See . If wanted to learn how to do a back flip a guide to doing back flips would be useful, but is it encylopedic? the answer to that is no
Stance: delete
Cited policy: Wikipedia:Arguments to avoid in deletion discussions (WP:USEFUL)

Comment: no significant attempts at assertion of |notability
Stance: delete
Cited policy: Wikipedia:Notability (WP:N)

Comment: Fails , no reliable sources. Also, I'm puzzled by the author's claim both here and on the article talk page that "uncited information is due to other editors trying to get it deleted." On the article history, it appears that he's the only editor to have added any text there. Am I missing something
Stance: delete
Cited policy: Wikipedia:Notability (WP:N)