Yeah, I'm not getting it either. The "cereal boxes" in New York and Chicago are full of offices, which are full of -- well, it's not all rich people, but a lot of them are rich.

Anti-development.

One way SF planners made it hard/less economical to build towers was to force the higher floors to be smaller than lower floors (Transamerica pyramid being the near-satirical example).

That has contributed significantly to SF's inability to build enough housing for the people that live there.

Also a dog-whistle is any statement that sounds palatable to the mainstream, but has an underlying meaning to a politically motivated group. It doesn't only apply to today's American right.