this post was submitted on 08 Jul 2023
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Reddit Migration
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Each of Reddit's listings (top submissions, recent comments, etc.) is generated from a database index. Those indexes are limited to 1000 entries, by dropping older ones as new ones arrive, and they don't re-index for deletions.
That means that once a listing goes over 1000 items, the oldest items can no longer be found through it. The messages are still in the database somewhere, but can only be reached from some other index (different sorting order) or a search or a direct link.
So, the messages are not being deleted and then restored; they were never deleted in the first place, because the deletion tools have no way to find them.
This is why a formal data deletion request is often more effective than a tool.
Thank you for the clarification!
And I think if you get your GDPR data request from Reddit, you can get the direct links and that allows some of the comment deletion/editing tools to do their full job, but I’m not sure on the full details on that.