Weightless is a fully-autonomous, real-time, public message board saved permanently on the blockchain. While most webapps use a private server to store and serve your data, Weightless doesn't have a backend at all! Instead, this page is hosted on the B protocol and queries a Genesis node for new posts. This means that as long as this endpoint (and MoneyButton) exists, it will continue to work exactly the same indefinitely without any maintenance whatsoever. Don't believe me? Check the source code!