LOL, you mean like this one, who don't allow any such thing ? I don't know if you've ever run a web site, Andy, but I have run several, including internet forums and I can tell you that what web hosting companies' Terms and Conditions say, and what the law says are often poles apart. On one forum that I used to run, I had to eventually ban a couple of people because I was getting warnings from the web hosting company, because although what they were doing was not strictly illegal, they were breaking my contract with the hosting company.
Added later.....
Here's part of the Terms and Conditions of one of the larger web hosting companies in the UK.....
The customer shall not :
send, transmit, make available, copy, retransmit, broadcast or publish (whether directly or indirectly) in whatever form any data, information or contractual rights, material or statement which infringes the Intellectual Property Rights or contractual or statutory rights of any person or legal entity or the laws or statutory regulations relating to defamation, contempt, blasphemy, infringement of privacy or personal data rights and any equivalent or related laws in any territory in which they are or may be accessed or made available;