>>SkyMar+(OP)
It is worse than anonymized data: you are easy to track in databases that are not storing data about you at all, only measuring the broader environment you operate in (typically for innocuous purposes). This data is inherently "anonymous" in that it was never designed to be associated with or track a person but you can nonetheless reconstruct identity and other information about people from this data.
Individual anonymity in a technical sense is impossible in an environment with network connected sensors. Above a critical mass of sensors, which we have far exceeded in most urbanized areas, there are no technical measures that can keep a person from being tracked.