The "ask" is not that a shared hosting account support 83 hits/second. It's that the hosting company demonstrate the bare minimum of respect and professionalism in contacting the hostee ASAP when their site is being shut down due to excess traffic. This isn't bitbucket or geocities, dollars are changing hands. If you don't like running a business that makes money then by all means, treat your paying customers like they are a burden to you, they will get the hint and go elsewhere.