That's a dataset of one, and due to your presence on HackerNews, you're likely more tech-savvy than the average reader of comments on news site, so more able to

That's a dataset of one, and due to your presence on HackerNews, you're likely more tech-savvy than the average reader of comments on news site, so more able to tell comments by bots apart from comments by humans. If a sufficiently large percentage of the population gets 50%, you can say that it passes the Turing test. For my part, I got only 60% (12 out of 20). This may be because English is not my first language.