Looks cool but I feel like you're going have to do a bit more work explaining what this is before people are prepared to start entering their content.

Medium

Teletype is a platform for creating corporate blogs and a great place to share your knowledge with people around you. Simply start writing — you’ll get it right.

What problems in other blog platforms does this service attempt to solve?

I think the biggest problem blogging platforms pose is the "proliferation of every tom, dick and harry sharing their nonsense opinions in an echo-chamber" problem... I don't think another blog service will solve that problem for me though.

You advertise "simply start typing" but don't make it clear that you have to log in first. Unless that's not the intended behavior, in which case, please consider testing your site in the desktop safari.

Is this a hosted service? Open source project? How does the pricing work? Can I use custom domains? Your about page is great at selling the product - but I need details on what I could use it for.