JS delete your tweets

delete-tweets.js

// This may or may not work for you
// Browse to the 'tweets' page on your profile
// Copy & paste into the browser console and hit enter
// Interval set to 10s to hopefully avoid rate limiting
// You may need to prove you are not a robot

setInterval(function() {
  // scroll to bottom of screen
  window.scrollTo(0, document.body.scrollHeight); 
  
  // click all the delete buttons
  $('li.js-actionDelete > button').each(function(e){ 
    this.click(); 
    // click the confirm delete button
    $('button.delete-action').click();
  });
}, 10000);