0437非公開@個人情報保護のため
2018/05/20(日) 10:40:56.23Yeah, your (you are) right.
It's not just grammatical mistake but typical wrong English by Japanese (or something by non - English speakers).
If u are fluent English speaker, u should feel wierd at the first sight when u read 420.
('u' doesn't meanjust 435 but everyone in general)