TL;DR: even if your delete script confirms a full wipe and your Reddit profile page shows zero comment, there may still be comments left over (that you can find through a search engine and delete manually on Reddit)....
One thing I’ll mention is to try actually clicking into a post if you see it on a Google search. Web indexing systems like Google may take time before they drop old links. If it’s still there when you’ve clicked into it, there’s still more to clean up.
I just found out that not all of my Reddit comments had been deleted despite my profile page showing otherwise. ( kbin.social )
TL;DR: even if your delete script confirms a full wipe and your Reddit profile page shows zero comment, there may still be comments left over (that you can find through a search engine and delete manually on Reddit)....