That's not intrinsically bad. What's questionable is the quality of the comments. It seems that almost all the remarks on this page are drawn from opinion or personal anecdotes. Don't get me wrong... personal stories can be interesting and insightful; it's just that, in most discussion threads, HN tends to balance opinion with links to more objective qualitative and quantitative sources. That's what differentiates HN from sites like Facebook and Reddit.
So, there should be a barrier to participating in discussions about gender on HN. If you have personal or professional experience that qualifies you to discuss the topic, please share it. If you took the time to research the issue and present a substantial, new perspective, please share it. But if you want to chime in with a vague, unsubstantiated opinion that dozens of others have already shared, please consider using another forum. That's what makes these discussions less productive.