I installed this same browser extension an hour ago. It allows you to block all posts from a given country or continent.
I immediately blocked all accounts from India, Pakistan, Bangladesh, most of Africa, and about half of the Middle East.
Holy crap, this site is usable again.
I've been using a browser extension that shows a user's location next to their username, and it really gives you some immediate perspective when you see just how much of the posting on this app is just Nigerians QT'ing other Nigerians.