Regarding new design: I did opted-out for it long ago but since August I'm being randomly served with new interface by force while browsing various subs - luckily, a cookie removal fixes the thing; they're definitely ignoring user wish to stay on simple, fast loading old interface and impose this performance and UX monstrosity. I am aware that eventually old interface will be gone because in long term it wouldn't attract audience that prefers modern bulky UI style. I won't be surprised that in the happy PR message they'll announce that reddit will use one interface since day x and x % of userbase is in maniac love with this best change they ever made.