Downvote all reddit comments in any given page(vanilla)

downvote.js

/* Likely is caught by vote-spamming filters, 
but it's just to feel better anyway, 
just copy and paste the following into your console and press enter
*/
var simulateClick = function (elem) {
    var evt = new MouseEvent('click', {
        bubbles: true,
        cancelable: true,
        view: window
    });
var canceled = !elem.dispatchEvent(evt);
};

document.querySelectorAll(".VoteArrow.icon-downvote.m-unvoted").forEach(function(isto){
    simulateClick(isto);
});