I don't see how that analogy applies. There is no depletable resource being exhausted. There is a Nash equilibrium where experts and those who are interested r

I don't see how that analogy applies. There is no depletable resource being exhausted. There is a Nash equilibrium where experts and those who are interested read/know the topic of the article and write some commentary about it. The most insightful comments usually receive more upvotes from everyone (including non-readers). reading the top comments is thus generally a good timesave to risk of being misinformed tradeoff that many users have decided to be worth taking. Being less reliable can be acceptable if it reduces the time to read by 10x or more.