DMD can implicitly convert class pointer to the bool. Is it bug or terrible feature?

[ilya-stromberg]

On Sunday, 24 November 2013 at 20:38:29 UTC, deadalnix wrote:
> I'd like to know why this feature is dangerous as well.

The root of the issue is identifier shadowing, see:
http://forum.dlang.org/post/hvxvllyafxnyvjooxhjh@forum.dlang.org