I just got this by email:
We noticed that you haven’t been active in moderating Mathematics Educators Stack Exchange over the last 4 months. That’s nothing for you to be overly concerned about - this is just an automated message letting you know that the Community Team is available to help you with any concerns you might have.
Sometimes life happens, and other interests take priority over site moderator duties. That’s no problem at all. We just wanted to make sure you were aware that we have an Absentee Moderator policy in which we remove a moderator's privileges when they have been inactive for 6 months.
I didn't think it had been 4 months, but maybe... So I went to the review button and approved someone's first post, and commented on a post that might get closed. (I did not want to vote to either close or leave open.) Checking the moderator dashboard, it still says I haven't done anything. Do I have to do extreme things like closing questions to show up as active?