This is a bug in the system where Community collects a little bit of rep for some unspecified reason.
I recently asked a duplicate version of this question on DBA.SE's Meta site1. As you can see from one of dev's answer they removed the rep manually:
We try to never let the bots earn rep, but this one became sentient. I challenged Community to a battle of epic proportions and removed the extra 4 reputation by force. Lesson learned: never trust robots
I assume that will be needed (manual intervention) to revert the other Meta Community members back to 1 rep.
1: I wasn't aware of this question when I posted my duplicate question.