I am an "out" athiest, also a nihilist of sorts. I'm not sure my take on nihilism is original, but I am a nihilist who sees nihilism as necessitating (paradoxically, I guess) a value or moral.
If all belief is unbased in absolute Truth, all beliefs are equally acceptable and valid. So with no Truth to be had, everyone may decide on their own what values and beliefs are True (or at least true for them). That is, nihilism destroys all basis for institutionalized belief, but leaves a clean slate and even playing field for each to choose one's own. (That's not the moral yet, just how I see nihilism and athiesm universally applied).
That said, this is the moral: with no absolute basis for validating personal beliefs and morals, each person should pursue their beliefs in a way that impedes as little as possible others trying to do the same thing. Mine is no better than yours, and yours is no better than mine, so if it doesn't help, it shouldn't hurt.
This sense of not hindering others should extend into all sorts of fields. Excessive consumption of resources by one impedes those who lack those resources, oil, food, water, land, everything. Institutionalized religion that forces itself upon others, preaches blind faith and indoctrinates youth before they have an opportunity to develop their own beliefs. Murder, intimidation, coercian (sp?). And beyond, to carry it even further, wonton waste of our natural resources hinders the generations of the future from pursuing their beliefs.
Waddaya think?
**I'm floating on sunshine.