With the disappearance of much of the greenwood they used to inhabit, the satyrs were forced into the cities. Their wayward nature made them ill-suited for a life among humans and their desire to roister and rollick and cause all sorts of mayhem was simply too strong an impulse to ever be subdued. As alcohol became much easier to procure, the satyrs drank until they were all but numb to the effects of wine and other liquors. No longer able to satiate themselves with alcohol, they moved on to stronger substances, and for hundreds of years experimented with and abused of all sorts of drugs. Eventually, this transformed them into decrepit versions of what they once were.
Today, satyrs mostly live in small groups of which you would hardly ever see more than 3 or 4 at a time. That is, if you would ever get the chance to witness them to begin with. They stick mostly to the shadows, hiding in alleyways and other dark corners of the city.