What you call trap I call tradition. There is a limited number of one letter names, getting your language to be identified with one is a big achievement. For D

What you call trap I call tradition. There is a limited number of one letter names, getting your language to be identified with one is a big achievement. For D in particular, there has been a long competition to become "the next C" and the name has helped D to always be considered a contender. And it does not poses such a problem for searching engines in practice. At the end of the day, you never search for "C", you search for something like "pointer to function in C" and probably much more specific, so any search engine will give you right results.