Do you think the new links queue is filling up too fast?
It's almost at the point where #300 (the last one) is less than 24 hours old. S/N ratio is starting to drop and I'm finding many 2-3 point things buried away that are gems.
That is not to say that the rankings should be perfectly suited to my tastes, but that as the new queue gets bigger and more unmanageable it becomes less scrutinized by voters (since time is a finite resource).
This Ted talk failed to really make the front page twice. It must have briefly been on the front page but it takes so much more weight now to actually hold that position. http://news.ycombinator.com/item?id=474875 and http://news.ycombinator.com/item?id=473821 I would encourage you to look for more examples of good stories that have not made the front page; this is the evidence that pg has said is needed to show that there is actually a problem here.
Time limiting submissions may help a little, though I haven't noticed people mass submitting middling articles. What we need is some time of cultural incentive to read the new page, and pages 2/3/4 of the new page.