So is MLS data in a sense, but good luck copying that data and not getting a letter from their lawyers the very next day. Real estate information is extremely

So is MLS data in a sense, but good luck copying that data and not getting a letter from their lawyers the very next day. Real estate information is extremely valuable. The massive amount of trust that keeps generating a fresh database of apartments to rent on craigslist is quite valuable to them. Why should they just allow anybody else to copy it for free?