This looks really nice, and it's also the first time I hear about Good Enough. Big fan of the Basecamp-ish design with "real" large buttons. I was considering https://micro.blog/ in the past but Pika looks a bit more polished, especially the simple editor.

If someone were to move their Hugo blog to Pika, do you offer a way to import existing blogs, or for example set redirect URLs?

Have you considered selling a self-hosting license like https://once.com/campfire or https://getkirby.com? Doesn't have to be open source.