Do you know of a forum where this could be discussed productively?
No, not really. Opportunities for good and insightful discussion open up from time to time in all kinds of places, and sometimes particular forums can have especially good streaks, but all of this is transient. I don't know any places that are particularly good these days.
From Mike Darwn's Chronopause, an essay titled "Would You Like Another Plate of This?", discussing people's attitudes to life:
Conclusion, graphs, and references in article. As usual, I recommend reading Chronopause.com as Darwin has many good articles; to quickly link a few: