Right so I've never actually tracked poltergeist stuff specifically but this is making me think I should start logging dates properly. I do paranormal photography and looking back at when I've caught the more interesting anomalies on camera, a fair few of them do seem to cluster around the lunar cycle but I always put that down to coincidence.
The MiB crowd would probably say the moon correlation is a deliberate misdirection - keep people focused on the moon so they dont look at what's actually causing the uptick. Cynical maybe but honestly not the worst theory I've heard.
What kind of activity are we talking exactly? Objects moving, sounds, electrical interference? Because if it's electrical weirdness specifically that's a whole different rabbit hole to go down compared to physical displacement of objects.