San Francisco used to be that, it's really not anymore though. All of the hippies who lived in places like the mission have been forced out (until they have rent control). It's all tech people now (well, and traditional industries like finance), and as a whole the population doesn't seem to care about the ever expanding homeless population.
I'll have to find the source later but the homeless population has skyrocketed on the west coast in the past 2 years. When you have assholes like me who come in and pay $3k for an apartment that was $2k just a few years ago, some people who are otherwise hardworking contributors to society are screwed. SF is no longer the place you go when you want to drop out.