Hey! Yeah, some site builders don't require you to create an account to try the product. I take a different approach so that the site is mostly pre-filled by the time you see it.
I try to address this by linking to a bunch of Postcard example sites on the homepage.
For why to use Postcard - I'm setting out to build "dependable tech tools" [1]. I think we need more unitasker applications that just do a good job, and just stick around. And, personal websites are something that I think more people should have - but, that no big VC-backed startup will ever focus on because it's a small market.
Postcards themself are a great personal website that's well-designed and has a nicely integrated newsletter. The newsletter posts also get featured on the site, and there's features like full-text RSS built-in.
[1] https://www.contraption.co/news/introducing-contraption-co