An account gets you a portfolio at siemphony.com/u/… you can make public when you are ready, a place to publish rules, and a feed of what everyone else is writing.
Nothing you write is public until you publish it, and your profile stays private until you switch it on. Publishing a rule licenses it to others under DRL 1.1. Creating an account means you are 18 or older and accept the Terms of Service and Privacy Policy.