User blog comment:Oslah/Nemesis Button/@comment-9759044-20131203182340/@comment-4434378-20131203191417

I would prefer this one. You may add them as a friend later, but allowing for you to pose a "Grudge Match" challenge following a game would really help to settle some arguments. So when you get done with a game, you may see a challenge appear, and you could accept or just go about your business.