Interestingly, as long as the discussions continue to contain valuable — and often educated — insights, I personally think there's still enough value to keep coming back to HN there alone. The subjective quality of links themselves may shift as the community ages, but it's the well-thought-out discussions and insights within them which are arguably often more worthwhile than the linked content itself.

It's worth mentioning that comments which don't seem to add much to the conversation are often down voted lately, which is promising.