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It looks like this article was submitted over a year ago with that original title, it's since changed it's name and was recently resubmitted

It originally said 1% of Wordpress sites.

Could be HN mod editorialising at work

Don't start assuming without evidence. I don't support the changing of titles, but I'm not going to blame the mods for something they didn't do.

Perhaps "it could be..." was merely a suggestion rather than an accusation? (It's within the realm of possibility based on empirical evidence.)