On Stack Overflow, I have a reputation of 189 and I used to have the ability to review posts. On Stack Overflow chat, I had no restrictions on chatting.
Now, suddenly, the "Review" option has disappeared, and in chat, most rooms seem to be locked.
Nothing appears to have changed on my SO profile, and I received no notifications of any sort that my rights were somehow being limited.
Has there been changes to SO policies/levels? If so, what were those changes? If there hasn't been any change to SO policies, then what gives with my account?