Has AA a bad implementation?

[Elronnd]

On Friday, 12 February 2021 at 20:59:50 UTC, Steven Schveighoffer 
wrote:
> I don't think there's any current way to explicitly free all 
> the items in the AA. Even aa.remove(key) is not going to free 
> the item.

Removing all the keys will trigger resizes, freeing the memory.

But doing that individually for each key incurs overhead.  Why 
not expose such functionality?