[dwheeler]

That is an endless rabbit hole. In that case, no one owns land or any other kind of property either. Obviously a government entity could take any or all of it away from you if you are in their jurisdiction. And if you do not pay land taxes, you don't get to keep the land either.

I mean ownership in the usual sense. There are laws and people who are supposed to enforce those laws so that once you purchase something and obey certain rules, you get to keep it. Perhaps more importantly, if a typical energy says they just want to take it from you, there are courts you can appeal to.

If you post on Facebook, and Facebook takes it down, you have absolutely no right of appeal. If I post material on my personal site on a domain I own, it is harder to take down, and much easier to bring it back. I'm assuming here that the content is not illegal, that's a different issue.