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)....
I don't trust those snakes. I'm working on code to use reddit's website and edit comments one at a time (one per minute so they don't think it's bot activity) and I'm going to deploy the code a month or two from now after the API is gone - because I want them to think they've "won" before I over-write and then erase a decade's worth of content
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)....