Things I've tried to fix it:
Admin > Privacy and Permissions > Roles
I've made sure to Allow status updates comments.
I'm running version 1.7.2 (Build 8520)
Admin > Plugins > Installed Plugins > News Feed > Settings
I've made sure to Enable comments here.
I don't see anything else that pertains to the activity feed anywhere. Does anyone have a clue what could be going on?