It might be a better move to go through the official channels for those who have them available, rather than using bots to delete the posts and comments. Of course, those of us who will make this request and have it complied with by reddit, will need to periodically check back to make sure they don't sneakily restore our content. I've read posts and comments of people who deleted their content months ago and noticed reddit restored it now.

Edit: I know its all in German, but with a little translation you can get the necessary information