Kind of despised the way you didn't even let me see a preview of my own created graph without having to signup, and the signup prompt didn't show up until I fixed the mistakes in the YAML. So I pasted something (generated), spent some minutes fixing the mistakes, then get hit with a signup prompt, before being able to see the graph... Just be upfront with the signup requirement, don't let me edit anything, if you're gonna gate it like that.