This makes me thing you don’t understand my meaning. I think you’re talking about one day reddit decides to search for an restore obfuscated and deleted comments.

Yes, that is what we’re talking about. There were a large amount of users that updated their comments to something basic and then deleted those comments. I’m fairly confident that before they happened they had zero need to implement a spam prevention system like you’re suggesting. The fact that all those users’ (including myself) comments are still is evidence of that.

They may have implemented someone like that recently, but not before.