What are the worst parts of D?

[ixid via Digitalmars-d]

Dicebot wrote:

> Switch to input/output ranges as API fundamentals was supposed 
> to fix it. Custom management policies as you propose won't fix 
> it at all because garbage will still be there, simply managed 
> in a different way.


Would it be impractical to support multiple approaches through
templates? There seemed to be clear use cases where supplying
memory to a function was a good idea and some where it wasn't.