Twitter "activity tweets" remover

twitter-activity-tweets-remover.js

// ==UserScript==
// @name         twitter-activity-tweets-remover
// @namespace    http://arashmilani.com/
// @version      0.1
// @description  Twitter "activity tweets" remover
// @author       Arash Milani
// @match        https://*twitter.com/*
// @grant        none
// ==/UserScript==

(function() {
setInterval(() => {
  let lis = document.querySelectorAll('.stream-item');
  for(let li of lis) {
    if(li.tagName !== 'LI'){
      continue;
    }

    let dataSuggestioJson = li.getAttribute('data-suggestion-json');
    if(!dataSuggestioJson) {
      continue;
    }

    let dataSuggestion = JSON.parse(dataSuggestioJson);
    if(dataSuggestion.suggestion_details.suggestion_type === 'ActivityTweet') {
      li.style.display = 'none';
    }
  }
}, 3000);
})();

Maybe CSS would be a better solution:

.stream-item[data-suggestion-json*='"suggestion_type":"ActivityTweet"'] {
  display: none;
}

Thumbs up for css solution