Force enable cramming (280 character tweets) on Twitter. NOTE: Stops working when you switch pages, refresh to fix. https://twitter.com/Prof9/status/912859110776950784

Twitter Cramming.user.js

// ==UserScript==
// @name Twitter Cramming
// @description Force enable cramming (280 character tweets) on Twitter
// @author Prof. 9
// @version 0.2
// @match https://twitter.com/*
// @run-at document-idle
// @namespace prof9.twittercramming
// ==/UserScript==

var initDataInput = document.getElementById('init-data');
var initData = JSON.parse(initDataInput.value);
initData.deciders.cramming_feature_enabled = true;
initData.deciders.cramming_ui_enabled = true;
initDataInput.value = JSON.stringify(initData);

// for CJK and etc
function getTwitterTextOptions(form) {
    var keys = Object.keys(form);
    for(var i = 0 ; i < keys.length ; i++) {
        if(keys[i].startsWith('jQuery')) {
            var jqc = form[keys[i]];
            return jqc.events.uiTextChanged[0].handler.context.attr.twitterTextOptions;
        }
    }
    return null;
}

function modifyTextWeight(form) {
    if(!form) {
        return false;
    }
    var opt = getTwitterTextOptions(form);
    //alert(JSON.stringify(opt));
    if(!opt) {
        return false;
    }

    // version: "default",
    // max_tweet_length: 140,
    // scale: 100,
    // default_weight: 100,
    // short_url_length: 23,
    // short_url_length_https: 23
    if(opt.version === 'default') {
        opt.max_tweet_length = 280;
        return true;
    }

    // version: "cramming",
    // max_tweet_length: 280,
    // default_weight: 200,
    // ranges: [{
    // start: 0,
    // end: 4351,
    // weight: 100
    // }, {
    // start: 4352,
    // end: 65535,
    // weight: 200
    // }]
    if(opt.version === 'cramming') {
        opt.ranges[1].weight = 100;
        opt.default_weight = 100;
        return true;
    }

    return false;
}

document.onreadystatechange = function() {
    function check(form) {
        var success = modifyTextWeight(form);
        if(!success) {
            setTimeout(function() { check(form); }, 100);
        }
    }

    var forms = document.querySelectorAll('form.tweet-form');
    for(var i = 0 ; i < forms.length ; i++) {
        check(forms[i]);
    }
};

Vai tomar no cú, vocês estão de palhaçada com a nossa cara. Essa porra não funciona nem um pouco.