No, it doesn't.
You can take your own gear there and bring it back. You can collect data. You can build a lunar hotel for tourists out of your own materials. You might be able to collect moon rocks for analysis. But you can't use celestial materials to build things, not asteroid mining, not Martian water, nothing like that.
That simply isn't so. I don't know why you continue to repeat it. There is nothing in the OST to prevent that.All All it prevents is claims of national sovereignty
It is true if you are an individual under the laws of your state. Free us from this Babylonian captivity!