Why do they spend their time opening kitchen drawers, hiding things and banging doors or giving obtuse information to mediums about how they liked fiddling with their leeks in their allotment? Or providing ‘signs’ such as making sure certain songs are played on the radio at specific times or producing a lot of white feathers. Or just breathily saying ‘Janice’ occasionally.
If they have that kind of power why aren’t they doing something more worthwhile? If it were me I’d be leaving notes around the house if my loved ones saying “it’s me Ponti! There’s a fucking afterlife! All the dogs are here but that twat down the road isn’t or I just haven’t bumped into him yet but there’s time yet given I’m here for eternity. Say hi to everyone!”
If they have the power to make Simon Mayo play Angels just as a family member switches on the radio surely you’d be using those powers to get a message to the station that reveals all about what happens when you are dead rather than messing around with playlists which seems like a lot of effort.