Ask HN: HN post upvotes vs comments

My last two Ask HN posts received more upvotes than comments. I realise the cognitive load / workload to respond to a post is greater than to simply click an 'upvote' button, but I'm wondering does there come a point where the ratio has meaning, i.e. lots of upvotes vs few comments suggests a question that is of interest to many, yet few people know the answer to. This would have more value than a post with few upvotes and many comments. Just thinking aloud here, is there then a metric that would cross over to the business space, where a business problem has a wide impact but few people tryin to solve that problem.