This is a very clever idea. For example, it can be used as a workaround to Twitter's limits in a much better way, I think, than a screenshot of text.
Itty bitty sites are contained entirely within their own link. >(Including this one!) This means they're...
💼Portable - you don't need a server to host them
👁Private - nothing is sent to–or stored on–this server
🎁Easy to share as a link or QR code