UserScript filter hckrnews.com with some keywords

filter_hckrnews.js

// ==UserScript==
// @name         hckr news
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://hckrnews.com/
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

var blocked = 0;
var next = 0;

function check_lines() {
	var els = document.querySelectorAll('.link.story');
	els = [...els];
//	console.log(JSON.parse(JSON.stringify(els.length)));
	els.forEach(function (el, i) {
		if ( i >= next ) {
//console.log(JSON.parse(JSON.stringify(el.innerHTML)));
			if ( el.innerText.indexOf("Russia") !== -1 || el.innerText.indexOf("Putin") !== -1 || el.innerText.indexOf("Ukrain") !== -1 ) {
				el.parentNode.remove();
			}
		}
	});
	next = els.length;
//	console.log(JSON.parse(JSON.stringify(next)));
}
check_lines();

blocked = 1;
setTimeout(function fn() {
	blocked = 0;
}, 2000);

document.addEventListener('DOMSubtreeModified', (e) => {
//console.log(JSON.parse(JSON.stringify(blocked)));
	if ( blocked )
		return false;

	blocked = 1;
	setTimeout(function fn() {
		check_lines();
		blocked = 0;
	}, 2000);
});


})();