TL;DR: even if your delete script confirms a full wipe and your Reddit profile page shows zero comment, there may still be comments left over (that you can find through a search engine and delete manually on Reddit).
Weeks ago, I used redact.dev well before the API shutdown to delete all my Reddit comments (thousands of them over 10+ years). Redact.dev confirmed a full wipe, and my Profile > Comments page on Reddit confirmed I had no comment left.
Yet, as of today, Google still returns dozens of results for “$myredditusername site:reddit.com”. It’s not just Google’s crawler lagging; when I follow those links, those comments are still visible on the Reddit website, under my username, where I have the ability to manually delete them.
Thankfully, I hadn’t yet nuked my account because I knew of other users whose deleted comments got reinstated (although that was thought to be caused by the deletion script exceeding the API rate limit; supposedly a different case, as they should show in the Profile page).
So even if your Reddit profile says you have no more comments, use a search engine and you may find plenty of leftovers.
spez: edited for clarity.
This is correct, most of those scripts can only delete 1000 comments from new/top/controversial.
The method to delete all your comments is as follows:
Do a GDPR request for a copy of your data using: https://www.reddit.com/settings/data-request. Wait until you get the zip file, then extract it somewhere.
Download the free utility shreddit from https://github.com/andrewbanchich/shreddit and point it to the directory where you extracted your GDPR data using the
--gdpr-export-dirflag.FYI for those who are worried that they aren’t covered by a law like the GDPR/CCPA (or even PIPEDA/LGPD/CPA/VCDPA) and that reddit might not give it to them, I came up with a way to get a similar list (bypassing the limits) here, https://kbin.social/m/RedditMigration/t/65260/PSA-Here-s-exactly-what-to-do-if-you-hit-the
This is very good to know, thank you.