Earlier quoted context omitted.
Are you chiding someone for knowing and communicating their confusion and assumptions? When someone is already communicating enough self-awareness to obviate that, either contribute clarifying information or say nothing.
I think the problem is that the OP did not stop at "I am confused, can someone explain this discrepancy to me?" They went on to make seemingly unconfused assumptions that the translator must have misspelled his own name in an article about misspelling names.
> The company changes his name to ‘Hans De Zwart’, with a capitalized D. A small annoyance, but for De Zwart it signifies something bigger ...
which seems to imply pretty unambiguously that using "D" is incorrect. Assuming that all the information I have is what is contained in the article, this is confusing.