I have seen some of these commented on already but here it goes.
Subscriptions
More for the profile like pics and info.
A reversal for the post order so newest posts come first in PM. (Though I love the new PM system. Very cool!)
As noted before, I think an app for tracking PM and subscriptions would be supper cool, as I have noticed a large number of users on their phones, myself included.

Sucks for the reset, but I'll take it to have y'all back! Awesome job!