There is a really tremendous streak of people helping people with no strings attached that I hadn’t found anywhere else I’ve lived. Especially but not exclusively on the engineering / product side - for a long time you could take a greyhound to Soma and have a couch to crash on and a job interview lined up without knowing anyone. Introductions are made without a second thought (extremely contrary to my east coast experience where to get an intro, it must be “worth” something to the third party), it is (was? I moved away a few years ago) an extremely special and collaborative place.