Tapermonkey user script. An experiment on improving chat conversations. Changes the color of Messenger or WhatsApp text box every time I start to write about myself.

amITalkingAboutMeAgain.js

// ==UserScript==
// @name         Am I talking about me again?
// @namespace
// @version      0.1
// @description  Find references to myself in messaging web apps
// @author
// @match
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var inputQuery
    var host = window.location.hostname
    if (host.includes("messenger")) {
        inputQuery = "._1mf"
    } else if (host.includes("whatsapp")) {
        inputQuery = "._2S1VP"
    }

    var expressionString = /\beu\b|\bmim\b|\bacho\b|-me\b|\bestou\b/

    function isItAboutMe(text) {
      return new RegExp(expressionString, 'i').test(text)
    }

    document.onkeypress = function() {
        var inputText = document.querySelector(inputQuery);
        if (isItAboutMe(inputText.innerText)) {
            inputText.style.backgroundColor = "#C9ADF3"
        } else {
            inputText.style.backgroundColor = "white"
        }
    }

})();