I think I'm going to stay. I'll try it for a few days or weeks. If I can get used to new interface, especially on mobile (jerboa currently) then I'm going to delete all my comments and posts on Reddit and delete my account. Going to use this as the final motivation to delete my Twitter and Facebook accounts as well. I'm not using them anymore anyway. I hope this is going to be the start of a bigger change around the internet away from these corporation owned sites.
It took me a bit to figure out. Open the sidebar, you should see something that says "Anonymous" on top, click that and there is an add account button.