Every major website has a lengthy Terms of Service policy, but how many people actually read them before signing up? Sure, they all check the box saying they did it, but I’d estimate that 98% of those people are lying.
Take Pinterest, the wildfire of the internet world. Their original Terms of Service policy included this:
By making available any Member Content through the Site, Application or Services, you hereby grant to Cold Brew Labs a worldwide, irrevocable, perpetual, non-exclusive, transferable, royalty-free license, with the right to sublicense, to use, copy, adapt, modify, distribute, license, sell, transfer, publicly display, publicly perform, transmit, stream, broadcast, access, view, and otherwise exploit such Member Content only on, through or by means of the Site.