Uhm, okay, so they can track secondary locations of people that have been on a particular stretch of beach in granularity of what looks like at least a day? How did the term "anonymized" slip into that sentence?

https://xmode.io/privacy/ says it's using fine grained location data in the same sentence as referring to it as "aggregated at the advertising ID level and associated to the device and not a physical person" which I just nominated for "most misleading BS I'll read all day".

Yea, what is the claimed "anonymization" here?

Who's that dude sleeping in my flat, hanging out with my gf and besties, working in my office etc if not me?

finally someone actually speaking about anonymization

https://covid-watch.org/article#heatmapTitle