If you want to do that you might try doing it very slowly as minor edits. Like swap, add, or delete a couple of words in several posts per hour, and just let the script run for long periods, gradually degrading the usability of your comments over time.

I don’t know if that would trigger whatever process Reddit is using to restore comments when users delete them, but there’s got to be some detection algorithm they are using that could be avoided while also, eventually, nuking your content.