My initial reaction was that I had absolutely no idea that this site even existed. While this is publicly facing data, it might explain some situations that I experience, such as people sending me generic recruitment emails to my old email address (the one leaked here, that hasn't been on my GitHub page for months now) filled with the name of the GitHub repository with the most stars and telling me how they liked my code in that repository (even though the most popular one on my profile is not software-related at all).
Mini ask HN to those whose email address is public on GitHub: How frequently do you get these kinds of recruitment emails?