Two things. First, social media is a means of proving that your life doesn't suck while, simultaneously, documenting every painfully boring life event. There's nothing special about going to a restaurant. We all do it. If you think your order of escargot de Bourgogne is a life event worth documenting, consider your existence on a pretty pathetic trajectory.
Second, while Instagram makes your acne less noticeable, it makes your food look a hundred times more disgusting. We don't know what it is about throwing a Walden filter over quinoa ravioli that makes it look like a plate of anal fissures, but you're gross for eating it, and a douchebag for sharing.