Wonder if some sites are seeding false positives to get your visit. Like ads saying "buy sarin gas attack in japan at the lowest price!".

Yes, even for HN it returns false positives.

Yeah I tried "dvmnasrtjkhqofjsenvign" and got false positives on Dribbble, Enjin, HackerNews, Instagram, Quizlet, Smule, and livelib.

Also got the same false positives with a couple aliases of mine that seem to be actually unique so far. I was a bit annoyed someone had already stole them on HN for a second.