Having run my own servers for almost 20 years, I think you're orders of magnitude safer with your own box collocated with some ISP. Commercial ISPs have very few fucks to give for people who are upset about content. Other than spam, network abuse, and crime, which are direct threats to their business, or properly filed DCMA notices, which incur legal liability, I just don't see any concern. In fact, I see a studious and practice avoidance of interest. Large ISPs just aren't very whimsical.

For the really paranoid, you can get yourself bandwidth from multiple providers; then you're only worried about synchronized whimsy. Which, I suppose is definitionally not whim at all.