Yes, my first business bank shut down my account when we started doing serious revenue each month.. first they thought we were laundering money for terrorists (this was just after 9/11) so we got letters faxed from reality kings and another sponsor, then they shut us down because they don't like porn
Fortunately we had no trouble finding other banks who like money. Nobody else in business has cared about the porn (accountants / lawyers etc.) and I don't tell a lot of people in my personal life.