jcgReddit threatens you for using Power Delete Suite and other tools now
On a laptop you can sort your comments by “top” and manually delete. Those are the highest visibility anyway.
TheOneWithTheHairOlder comments (1 year+), if you delete will simply re-appear. Then I tried editing old comments yesterday (using public domain filler text), but overnight my comments have been "restored". Newer stuff you can certainly do this to.
Someone said it’s the chaching or refreshing. Check again and let us know.