I just spent all day today fighting with reddit, trying to get all my comments deleted/overwritten: https://kbin.social/m/RedditMigration/t/45417/Anyone-have-experience-with-deleting-comments-to-see-older-comments#entry-comment-190482
It's not just me, someone else reported the same, though using a different tool: https://kbin.social/m/RedditMigration/t/46805/Strange-phenomenon-while-deleting-my-comments
Basically, reddit has the most ridiculous api ever! A 1000 limit on viewing .. well basically anything. Try to go further back, and you can't.
The tools and scripts and websites we are using to delete, they are hitting that limit and can't go past it. My own reddit is only 5 years old and I hit this. I imagine that many folks where, the ex-redditors who had 12, 17 year old accounts, you probably didn't get everything on your way out.
Unless of course, you had a data retrieval request made to reddit, and reddit responded with your data. Only then are tools like shreddit and websites like shreddit.com able to completely wipe out your history. Or else you knew about this somehow already and used an external manager like eternity - https://github.com/jc9108/eternity - to save a copy of your posts before they got lost to the 1k limit.
Worst of all, it's explained that deleting items does not rebuild the list - so you can't see the older stuff by deleting newer stuff.
I'm hoping that private/public transition is an exception to this and it'll rebuild my lists when that happens. Maybe then I can go far back enough to delete everything.
Edit: Nope, someone confirmed in a comment below that this doesn't happen.
Also looks like pushshift is not an option, as pushshift was shut down last month, https://old.reddit.com/r/pushshift/comments/13mhuzq/api_has_been_taken_down/ - and under the new deal, regular users won't be able to use it when it opens up for business again, only approved moderators can (and likely only for approved reasons) if i'm understanding https://old.reddit.com/r/pushshift/comments/13w6j20/advancing_communityled_moderation_an_update_on/ correctly.
Go to the r/pushshift sub and the stickied post for deleting your pushshift content. Follow the directions in there.
I had pds copy and report all comments before overwriting them and have a csv file of all the comments deleted. PDS ran for 45 minutes on my largest account.
I think there's been a misunderstanding - you're just trying to delete your data from pushshift itself by following https://teddit.adminforge.de/r/pushshift/comments/10yj803/removal_request_form_please_put_your_removal/ right?
I thought maybe you had a confirmation to access their API directly. Oh well.
BTW, you can run a line count on the CSV from PDS. If you really had 3000 comments and 500 posts, the CSV should have at least 3500 lines (one per post/comment). Probably will have a lot more as PDS uses quotes to make multi CSV records. But if you have less then that's a red flag that PDS might not have saved everything or erased everything.
For my much smaller account, PDS also ran for longer - over an hour. But maybe internet speeds has something to do with that as well.