What's some things about Brooklyn you would only know if you're a long time local

Williamsburg is overrun with trust fund babies who think they're "edgy" for buying a $400 t-shirt from some overpriced boutique, not realizing it was probably made by a 12-year-old in Bangladesh. And don't even get me started on the influx of Finance Bros invading the area, turning every dive bar into a goddamn kale salad boutique. Half these fools wouldn't know a real New Yorker if one spit right in their overpriced avocado toast.