Read books and magazines from the early 20th century and before and everyone from starving artists and authors up to nobility and royals lived there. Now it's all either offices or empty units.
There's no sense of resident life there now: people might "go out" to central London for a day or night out or they might work there, but they'll travel home for maybe an hour afterwards.
The Douglas Adams of this century certainly won't live in Islington: the house he once shared with two others is now worth something like £2 million (to say nothing of the 5-bed he moved to in the 80s).