For this to appeal to an average person I think youd need some $20 device that works out of the box as a server.

Connects to your wifi like your smart tv does, and then does some black magic to get around the NAT issue to register a subdomain that you can use.

The device provides a facebook or twitter like UI to set up your site.

Even then Im not sure how you'll get people off social media onto this as it is still less convenient unfortunately.