UX Overflow

The place where designers find answers.

UX Overflow is a website where you UX designers can ask and answer burning questions

Looks like a cool project... but how is this different from https://ux.stackexchange.com/ ?
another service that will close in a year, cheaper and easier to have a telegram chat
Hi! cool project. Could you tell how it was built? :) Looking to create something similar in fb marketing niche