What are the worst parts of D?

[Andrei Alexandrescu via Digitalmars-d]

"Dicebot" <public at dicebot.lv> wrote:
> On Thursday, 9 October 2014 at 15:00:02 UTC, ixid wrote:
>> Multiple approaches to how library functions can handle memory.
> 
> As long as it allows us avoid creating new GC roots and keep using GC for
> all allocations at the same time.

To clarify: calling GC.free does remove the root, correct?