[gclist] Finalizer flame wars.

[Charles Fiterman]

> The first time I read this I assumed it was a joke, but I suppose with
> weak pointers it could make sense. Weak pointers are, of course, a
> very useful feature which render GCs non-transparent.

Let us suppose a garbage collected system is leaving a monster
storage footprint to the point where the program is useless. Hardly
an unknown phenomia. Asking why some objects are being kept alive
by the collector is smart. You may be able to zero some pointers etc.

Information on why all objects are being kept alive is a good way
to reduce monster footprints. Face it people put in conservative
collectors to reduce storage leaks and often get the opposite.