@GrapheneOS @Life_is @CoMaps
My justification is that it is just as much PII as a my address, the only difference is that it was collected wirelessly, which makes your argument boil down to "the GDPR does not apply to data collected wirelessly".
But the real problem is that even if the GDPR did not exist, you should not be arguing for collecting personally identifiable data without consent. That's in the realm of big tech companies with "be evil" ss their motto.
Please don't be like them.