Licensing is cool. Just imagine how much better this board would be if people needed a license to get on the internet, or a license to view certain websites.
You accepted the terms and conditions of this website when you created an account that was subsequently licensed to you. You also accepted licensing terms for the software that you use to get on the Internet and this website, and the software that powers it, and the device that powers that software.
You are also bound by terms and conditions governing your use of whichever Internet service provider's infrastructure you've chosen to use.