On the "Reddit: Why no one uses D" post someone seems to be genuinely interested in D's abilities and requested information on equivalents to std::map and std::auto_ptr
I've done the best I can to point him in the correct directions. In any case here is the link. http://www.reddit.com/r/programming/comments/93jh5/ask_proggit_the_d_programming_language_looks/c0bd2m1