It's pretty simple really.
You don't pay anything to us to use this site. As long as you don't piss anybody off or blatantly break the law, we're cool with that arrangement. You get the use of the site "as is" and without any warranties, explicit or implied. We'll do our best to make sure the site is here when you need it to be, but sometimes circumstances will conspire to take us "down". Tough. Enjoy it while it lasts!