I have been increasingly having to re-run my purge scripts across multiple accounts, despite not being on reddit for a few weeks now. The longer i wait between logging in and purging comments, the more appear.
And they do appear quasi-random, as if they page/comments get restored when another user pulls/visits an older page.
How does this even square with privacy regulations anyhow. If a user wants to delete their comments, forcibly restoring them against their will is, at best, unseemly.
What I’ve noticed is that subreddits that were private when I initially did it and are restored will then show up. I’ve had to go back each time a subreddit comes back. r/oddlyspecific just came back for example and now all my comments from that subreddit are showing up.