Will this take effect in the "Ask HN" section as well? I would argue to leave it as it is (or at lower the threshold of number of endorsers) because it will be harder to get endorsers for a non popular thread. Let's say somebody asks "What are the good places to meet hackers in Barcelona?" and I post an answer helpful for the OP, it will not get many endorsers since this question will not be viewed by many here. Also, I have my doubts for the "Who is hiring?" thread as the people who are looking for jobs will not have the incentive to endorse posts since it will increase the number of competitive applicants for the jobs.