Actually, if you want to interpret "endless possibilities" literally, that still doesn't indicate you can use it however you wish. Sets can be infinite in size without containing everything there is.
Imagine the integers were all the things you could do with the service. Imagine that those odd ones involved hosting a server, while the even ones didn't. The set of even numbers is limitless, even though it excludes all the odd numbers.
So what? If we are going to be pedants about the literal definition of endless then coming up with mathematical analogies is not in the spirit of pedantry. Limitless may be a definition of endless but it is not the only definition.
edit: Wow, down-voted for out pedanting the pedants. That's some cognitive dissonance there.