Ask HN: What if HN was biased against submissions on very popular topics?

Keep track of trending keywords, and if X% of frontpage topics are about one topic, make it tend not to rise on the front page. Perhaps a small bias for something with 3 or 4 topics already popular, and a larger one if the threads increase.

This might be able to solve the "_why problem" and the "Erlang problem" if they recur.

Thoughts?