Just tried a quick google search: https://www.google.de/search?q=inurl:news.ycombinator.com/user%3Fid+site:news.ycombinator.com&num=100 https://www.google.de/se

Just tried a quick google search: https://www.google.de/search?q=inurl:news.ycombinator.com/user%3Fid+site:news.ycombinator.com&num=100 https://www.google.de/search?q=inurl:news.ycombinator.com/us... Reveals a lot of usernames and creation dates.