The script works fine. What actually happened was that some subreddits were in blackout mode and therefore the comments were invisible but not yet deleted. When they returned the comments became visible again. Anything the script missed was because of the comments temporarily not being visible from the API. Simply running the script again was all that was needed once subreddits returned. My comments have stayed deleted after that.

What’s the point of migrating the coral reefs out of the ocean? Isn’t it a habitat for sea life? What of the sea life, their home is being scooped up?