I think this highlights how ridiculous it is to expect Facebook to enforce laws. For a given plot of land in the Amazon, how is Facebook going to know the title history of that land. If you have ever paid a title company in the US for a search you know that process takes weeks and theres a much better paper trail here then for some little plot the heart of the Amazon.

I'm guessing FB doesn't care either way and would be happy to comply to remove a listing once a Brazilian court determines that a sale is illegal but we don't want Facebook being a defacto Brazilian court.