Why? Because 75 Chestnut is popular with the Beacon Hill locals, who generally are not looking to impress or be seen; indeed, the crowd we saw there the other night seemed to simply want to have a good meal and chat about the day. That is not something that even wealthy people want to do on a regular basis if they have to spend a ton of money and dress up a bit. So now, the locals have a place that has great quality food, decent prices, and is more casual.
Congrats to 75 Chestnut for becoming a place that the locals will likely be very happy about!