Yeah there are some restrictions, no erotic/porno and you can't host a large number of free content for download, but doesn't say what is considered a large amount. But there is most likely some webhosting companies that allow any content and hosting of files etc. But again it all depends on what you need.

Also you can read this maybe that will be helpful as well: http://www.pcadvisor.co.uk/news/internet/the-5-best-free-online-storage-services-3233766/