A lot of the punchlines are “ha ha, aren’t they weird?”, which hits totally different if you’re the sort of person who the character is an obvious caricature of. Doubly so if the weirdness in question is associated with some form of neurodivergence. For some people - myself included - a lot of the laughs in that show feel very much like they’re laughing at you, not with you. It’s only funny if you identify more with the people on the other side of the joke.
A lot of food places, particularly eat-in restaurants, are just perpetually struggling. Half the staff are on minimal pay, or the owner’s friends and family helping out. They struggle and lose money for a few years before finally folding. A regular who has no idea about the industry buys the place and keeps much of it the same because they always loved it. The process repeats.