Removes comments made by bots on websites such as YouTube.
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// ==UserScript==
// @name Hide Bot Comments
// @namespace https://theusaf.org
// @version 1.2.1
// @description Removes comments made by bots on websites such as YouTube.
// @author theusaf
// @match https://www.youtube.com/**
// @copyright 2022 theusaf
// @license MIT
// @grant none
// ==/UserScript==
const SITES = Object.freeze({
YOUTUBE: [
/^\s{2,}/, // starts with too much whitespace
/^(\s*@.+)?\s*(https:\/\/[^\s]+|[\n.\s])+$/, // only links and other punctuation
/^(\s*@.+)?[A-Z\s\r\n!]*https:\/\/[^\s]+[A-Z\s\r\n!]*$/, // all caps and a link
/^(\s*@.+)?\s*https:\/\/[^\s]+(\n|.|\s)*(don'?t miss|Don'?t miss|Bots for u|Finally|💜|fax)/, // A link and a random message afterwards
/^(\s*@.+)?\s*This\s*https:\/\/[^\s]+/, // This + link
/^(\s*@.+)?\s*https:\/\/[^\s]+\s*[a-z]+\s*$/, // link + random "word"
/PRIVATE S\*X/,
/-{5,}/, // too many "-"
/SPECIAL FOR YOU/, // common phrase
(text) => {
const smallLatinCaps = text.match(/[ᴀʙᴄᴅᴇғɢʜɪᴊᴋʟᴍɴᴏᴘᴏ̨ʀsᴛᴜᴠᴡxʏᴢ\s]/g)?.length ?? 0;
return smallLatinCaps / text.length > 0.7 && text.length > 10;
}
]
}),
site = getCurrentSite(),
commentMutationListener = new MutationObserver((mutations) => {
for (const mutation of mutations) {
for (const node of mutation.addedNodes) {
const text = getCommentText(node, site);
if (text) {
if (isCommentLikelyBotComment(text, site)) {
node.style.display = "none";
}
}
}
}
});
commentMutationListener.observe(document.body, {
subtree: true,
childList: true
});
/**
* Determines whether a comment is likely spam.
*
* @param {String} text The comment's content
* @param {Object} site The website the comment is from
* @return {Boolean}
*/
function isCommentLikelyBotComment(text, siteChecks) {
for (const check of siteChecks) {
if (typeof check === "function") {
if (check(text)) {
return true;
}
} else {
// assume regex
if (check.test(text)) {
return true;
}
}
}
return false;
}
function getCommentText(node, site) {
switch (site) {
case SITES.YOUTUBE: {
if (node.nodeName === "YTD-COMMENT-RENDERER") {
return node.querySelector("#content-text").textContent;
}
}
}
return null;
}
function getCurrentSite() {
switch (location.hostname) {
case "www.youtube.com": {
return SITES.YOUTUBE;
}
}
}