Nothing based on IMEI->IMSI is in any substantial way 'anonymous'. This obsession with making use of network metadata for tracking purposes by LE needs to blood

Nothing based on IMEI->IMSI is in any substantial way 'anonymous'. This obsession with making use of network metadata for tracking purposes by LE needs to bloody stop. It isn't less problematic. It's as problematic as any type of plugging into these datasets. It's essentially statistical drag netting.