I wonder about the churn in the user community. If the community doesn't regularly refresh by attrition and new-joiners, then it must be aging. If that were t

I wonder about the churn in the user community. If the community doesn't regularly refresh by attrition and new-joiners, then it must be aging. If that were the case, you'd expect to see quarter-life crises, mid-life crises, etc., reflected in the posts at predictable points. The pace is accelerated, of course, because we're on internet time.