Save your effort. What's already there is there forever. They can just roll back your comments, or even, if they're in the mood for it, make it appear under an entirely different username.
The only way to win is not give them any more. And that fight is already under way. They've already started recommending old comments after new ones because the quality isn't as high any more.
Think about it: The only people who contribute to Reddit now are the clueless and the sort of people who have willingly stayed.
I like to imagine Spez stomping around saying "Hmph! Hmph! It's not fair! Why did they all leave?! They're stealing my revenue by not giving me anything for free!". I mean, he's probably not doing that, but I do like to imagine it.