reddit-delete.js

/* JS script to delete Reddit comments.

If you have RES installed you can have more items on one page, it's easier.
https://www.reddit.com/r/RESAnnouncements/

Open you comments page:
https://www.reddit.com/user/<username>/comments/

Copy and paste this to the Console, it will overwrite and delete all comments:

You can run the same script on the Submitted items page, but they will be only deleted,
the script won't edit them one by one to overwrite the content. This shouldn't be a problem
as the public content and the submitter username is changed to [removed] when a submission is deleted.

*/

var str      = 'This comment has been overwritten'
var time     = 0,
    interval = 2000
$('.edit-usertext').click()
	$('.md textarea').val(str);
var save = $('.usertext-buttons .save')
var delButton = $('.del-button .option .yes')
var promiseArray = []
 save.each(function () {
  time += interval
  promiseArray.push(new Promise((resolve, reject) => {
    setTimeout(() => {
      console.log('editing');
      $(this).click()
      resolve()
    }, time)
  }))
})
promiseArray = promiseArray || [Promise.resolve()]
Promise.all(promiseArray)
.then(() => {
  var time      = 0,
      interval  = 800;
  delButton.each(function() {
    time += interval
    setTimeout(() => {
      console.log('deleting');
      $(this).click()
    }, time)
  })
})