Moderators, could you please edit the title to reflect what the article is actually about? The original title is extremely misleading, to put it mildly.
I'm glad I saw the original link, the title piqued my interest and I clicked through, I would glaze right over the current title. It's not the end of the world if people don't confuse HN for a list of term paper topics.
Comments like this just leave me curious as to what the original title said. :)
It was the title of the article, "The Only Earthling With a Facebook 'Dislike' Button"
Sounds like the button isn't part of the core product, just part of the release infrastructure.