I doubt it will be a lot of people since most redditors use the app. But the few will cause a mighty ruckus and rage, rage against the dying of the "old". Reddit probably keeps old around because they don't want to deal with the incessant whining. God I would hate to run a social media platform.

I will be one of them. I stopped using Digg and switched to Reddit when they redesigned their website. At least we will still have HN to be bastion of simple design. (I hope)