Absent Moderators
I can just guess, if there is any reason that a member who started a group on True Nudists leaves the medium without returning and not designating anyone to take over, it would be if the group started did not have any members yet, and they came after the group started and the owner was gone already. I have a group started without any members. I don't even know how to make the group searchable, or findable, and I don't know how to look for menbers I would want in the group, I just started it thinking there would be such among members of True Nudists. But if for some reason I would think I didn't care to come back to True Nudists anymore, I would close that group, unless menbers were in it, then if I still wanted to go (much less likely with that), I would still leave another member in the group to moderate and have control in the group.