Try to imagine the following situation:

My apartment is too small for me and my little family so I want to have a bigger apartment in a new house. I go to a construction forum and ask:

"I want to build a new house with lots of apartments. I need an architect, engineers and constructors. I can't pay. You can also live in this house or I share income from rents with you. Thanks.
By the way: How should we call this house?"

Do you see what I mean? This is no joke. A house is expensive but a MMO is even more expensive. And why should they all work for me? They can do all this on their own. They dont need me except I have to offer them something (money, knowledge, hard work).