[keybpo]

But people here are saying not all appear on the profile pages. I've checked mine and indeed there are a handful of undeleted stuff. My last purge was before the blackout and I'm sure it was completely clean as I had to do a couple more passes to catch all the sumbission/comments that for some reason weren't wiped (edited & deleted) on the first pass.

I also use old.reddit but I believe on the new.reddit you can limit a search to only a defined user comment. Maybe with some wildcards or regex one can get to them? Otherwise you'd need to know of a submission or a direct link to your comment.