Two important things here:
1. Obviously unenforceable.
2. Someone could mention the url or hyperlink to it, and then file a lawsuit to have the legal term and claimed damages declared invalid.
Since attorney's fees causes are often made reciprocal by law, that means this website owner not only doesn't collect $100K, he gets to pay thousands of dollars to someone's attorney.
1. Pay attention to your legal terms. This isn't a situation where there is no potential harm for over-reaching.
2. Don't get funny or cute with your legal terms.