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Spammers are targeting HN now? Wow! Comment flagged.
HN is full of spam and has been for years. There are more spam submissions in /newest than non-spam. Thankfully pg and the other moderators are swift in implementing tools to blast spam accounts and urls.
HN has a pagerank of 7. I'm currently running an anti-spam experiment with a guestbook on a PR 4 website; it gets 300 spams an hour.
Try setting showdead to on for a while. Or just hang out on "new".