Our digital twins will write the comments. They will be us, but with none of our flaws. They will never experience the shame of posting a dumb joke, getting flamed, and then deleting it, for they will have tested all ideas to prevent such an oversight. They will never experience the satisfaction-turned-to-puzzlement of posting an expertly crafted, well-researched comment that took 2 hours of the workday to draft - only to receive one upvote, for their research will be instantaneous and their outputs efficient. Of course they will never need to humbly reply, 'Ah, I missed that, good catch!' to a child comment indicating the entire premise of their question would be answered with a simple reading of the linked article - for they will have deeply and instantly read the article. Yes, our digital twins will be us, but better - and we will finally be free to play in the mud.