Leaving it running for 24 hours does nothing lol. Once you make over 1000 comments you cannot access the older comments through the API. If you have made 2000 comments and delete 1000 the older 1000 will not show up on your profile. I have no idea how else to explain this.
Hacker News users love to act like they are the most intelligent people on the internet but in reality they have no idea what they are talking about if it isn't about some obscure programming language.
There is no conspiracy to restore deleted comments lol. You can only retrieve 1000 items with Reddit's API so when you use Shreddit to delete your posts only 1000 are deleted. Everything else before that remains untouched. Use PullPush to really delete everything.