GreaseMonkey script to remove Follows You profile cards from Following page

HideFollowsYou.js

// ==UserScript==
// @name				Hide Follows You
// @namespace   twitter.com
// @description Hide mutuals to unfollow unfollowers.
// @match				https://twitter.com/*/following
// @version			2
// @require			http://code.jquery.com/jquery-latest.js
// @require			https://gist.github.com/raw/2625891/waitForKeyElements.js
// ==/UserScript==

var neverUnfollow = new Set();
// Add Twitter handles to never unfollow here
// neverUnfollow.add("")

function isError(element, expectedTag, level) {
  //console.log(element[0].nodeName + ' == ' + expectedTag);
  if (element == null || element[0] == null) {
   	console.log('ELEMENT AT LEVEL ' + level + ' IS NULL!');
    console.log(element);
    return true;
  } else if (element[0].tagName == expectedTag) {
    return false;
  } else {
    console.log('ERROR DETECTED AT LEVEL ' + level + '!');
    console.log(element);
    return true;
  }
}

function hideFollowsYou (jNode) {
  if (jNode.text() != jNode.html()) {
    return; 
  }
  //console.log('JNode HTML: ');
  //console.log(jNode.html());
  
  var row = jNode; // span css-901oao css-16my406 r-1qd0xha r-ad9z0x r-bcqeeo r-qvutc0
  if (isError(row, 'SPAN', -10))
    return;
	row = row.parent() // span css-901oao css-16my406 css-bfa6kz r-1qd0xha r-ad9z0x r-bcqeeo r-qvutc0
  if (isError(row, 'SPAN', -9))
    return;
  row = row.parent() // div css-901oao r-1awozwy r-jwli3a r-6koalj r-18u37iz r-16y2uox r-1qd0xha r-a023e6 r-vw2c0b r-1777fci r-eljoum r-dnmrzs r-bcqeeo r-q4m81j r-qvutc0
  if (isError(row, 'DIV', -8))
    return;
	row = row.parent() // div css-18t94o4 css-1dbjc4n r-urgr8i r-42olwf r-sdzlij r-1phboty r-rs99b7 r-1w2pmg r-1vsu8ta r-aj3cln r-1fneopy r-o7ynqc r-6416eg r-lrvibr
  if (isError(row, 'DIV', -7))
    return;
  row = row.parent() // div css-1dbjc4n r-1n0xq6e
  if (isError(row, 'DIV', -6))
    return;
  row = row.parent() // div (name handle) css-1dbjc4n r-1awozwy r-18u37iz r-1wtj0ep
  if (isError(row, 'DIV', -5))
    return;
  row = row.parent() // div (name handle description) css-1dbjc4n r-1iusvr4 r-16y2uox r-5f2r5o
  if (isError(row, 'DIV', -4))
    return;
  row = row.parent() // div css-1dbjc4n r-18u37iz r-thb0q2
  if (isError(row, 'DIV', -3))
    return;
  row = row.parent() // div css-18t94o4 css-1dbjc4n r-1j3t67a r-1w50u8q r-o7ynqc r-1j63xyz
  if (isError(row, 'DIV', -2))
    return;
  row = row.parent();  // div css-1dbjc4n r-1ila09b r-qklmqi r-1adg3ll
  if (isError(row, 'DIV', -1))
    return;
  row = row.parent(); // div
  if (isError(row, 'DIV', 0))
    return;
  
  //console.log('Row: ');
  //console.log(row);
  //console.log(row.attr('class'));
  
  if (typeof row.attr('class') === 'string' && row.attr('class').length > 0) {
    console.log('Incorrect row located!');
    return;
  }
  
  var userInfo = row.children().first(); // div
  if (isError(userInfo, 'DIV', 1))
    return;
  userInfo = userInfo.children().first(); // div
  if (isError(userInfo, 'DIV', 2))
    return;
  userInfo = userInfo.children().first(); // div
  if (isError(userInfo, 'DIV', 3))
    return;
  userInfo = userInfo.children().eq(1); // div (no avatar)
  if (isError(userInfo, 'DIV', 4))
    return;
  userInfo = userInfo.children().first(); // div
  if (isError(userInfo, 'DIV', 5))
    return;
  userInfo = userInfo.children().first(); // div
  if (isError(userInfo, 'DIV', 6))
    return;
  userInfo = userInfo.children().first(); // a
  if (isError(userInfo, 'A', 7))
    return;
  userInfo = userInfo.children().first(); // div
  if (isError(userInfo, 'DIV', 8))
    return;
  userInfo = userInfo.children().eq(1); // div (handle and follows you)
  if (isError(userInfo, 'DIV', 9))
    return;
  
  //var userInfo = row.first().first().first().children().eq(1).first().first().first().first().children().eq(1);
  //console.log('User Info: ');
  //console.log(userInfo);
  
  var twitterHandle = userInfo.children().first().children().first();
  //console.log(twitterHandle.text().trim());
  var followStatus = userInfo.children().eq(1).children().first();
  //console.log(followStatus.text().trim());
  
  //var twitterHandle = jNode.find(".r-111h2gw:first-child"); // first-child excludes Follows you
  //console.log("Never Unfollow has \"" + twitterHandle.text().trim().substr(1) + "\"? " + neverUnfollow.has(twitterHandle.text().trim().substr(1)));
  if (neverUnfollow.has(twitterHandle.text().trim().substr(1))) {
    console.log("Never Unfollow @" + twitterHandle.text().trim().substr(1));
    row.remove();
  }
  
  //var followStatus = jNode.find(".r-aaos50");
 	if (followStatus.text().trim() == "Follows you") {
   	 row.remove();
  }
}

waitForKeyElements ('span:contains(Following)', hideFollowsYou);