I very much doubt they’ll get back. I also put about minimal effort into the report as I really don’t expect anything to come of it

If you added a 5s delay between deletes, they don’t come back. Not a caching issue

Oh so it was literally a co-incidence I got it a few minutes after the ICO email?

They’d come back after a few days. I’d remember the first few comments at the top of the list, and they’d get deleted for a day or two then re-appear