Because we don't oversell, we will allow you to use every last megabyte, kilobyte and byte of your allocated disk space and bandwidth. We won't suspend you just because you're using too much, and we won't use excuses for suspension that we've seen at other hosts, excuses such as: "you were file hosting, not allowed" (we allow file hosting), "you were abusing the server by using too much bandwidth" and "you're sites were scam sites". Yes, we've seen them all. Don't worry, we're not like that, you can use it all :)
For more information on overselling, try the WebHostingTalk wiki entry, here.