GH sign up would be useful. If you email us I will ping you when we add it: feedback at quiltdata dot io.
I've downloaded Quilt using pip, is the login more for cloud storage for your own data and projects similar to github? Maybe clarify that point on the website? Because not too sure what I would be signing up for, thanks again and love the service.
The login allows you to push packages. If you only want to consume public packages: no login required.