Facebook validates armchair experts with a shiny badge

We’ve all been ‘that person’ online at some point. You know, the one who chimes in with an essay-long comment on something we’re passionate about works — or correcting someone’s egregious mistakes (or maybe that’s just me). The problem is, no matter how knowledgeable you might think you are, there’s little to differentiate your opinion from those of anyone else’s online. Fret no more, for you can now officially be dubbed an ‘expert&rsq