I’m not sure if it’s a coincidence, but I raised a case with the ICO in the UK, and today they got back to me asking for all my communication with Reddit. Also today - after a month of silence - Reddit also emailed me with this
If you’re in the UK and had been affected by posts being restored, I’d recommend contacting the ICO. It takes less than 5 minutes
I just used the tool last week and it deleted 3500 comments successfully. A couple of times it encountered errors, but it stopped and asked what I wanted to do before proceeding.