Then there's word of mouth, the more you increase your membership ranks, the more clout you've got. Up to 25 dollars per is usually an acceptable cost for acquiring a new member. You've worked all week, you've kicked back, gone out Friday night, you are in a good mood. People seem to be ready to listen a bit. Sunday evenings are next best.
People sometimes get upset.
Berkeley doesn't consider itself the center of the world, though. I don't think so. Berkeley at this point considers itself to be fighting a losing battle. It is like a lot of the rest of the country. It can be uncivil.