But that's hard to record for the same reason that it's hard to get the community's opinion based on upvotes. If 1000 people read this page, 200 vote in favor

But that's hard to record for the same reason that it's hard to get the community's opinion based on upvotes. If 1000 people read this page, 200 vote in favor 90 vote opposed you would say that the majority of people are in favor of Offer HN posts. However, if the other 710 would have voted "I don't care" then your results would be completely off.