I just want to point out that if you use one of those comment deleter apps (powersuite, shreddit etc) they cannot delete comments from private subs as they are hidden. So if you tried deleting your stuff while subs are marked private those comments will not be deleted and will reappear on your profile once the sub(s) go back to normal mode. (at the time I'm writing this, there's still 3600 subs currently dark according to https://reddark.untone.uk/ so if you commented in any one of them marked private you'll have to wait for them to come back to public mode to erase them.)

Also, when they do come back they won't always show up normally in your profile. I've had to flip between hot/new/controversial a few times to see them all as they pop back up.