Ideally we live in a society where not being anonymous is not such a big risk. But governments change, the data is still around to be abused. This is what disturbs me. Is how data can be abused in the future.
The general 1984 style dystopia vision is that there’s a gov’t change for the worst and you could be SWAT’d out of the blue.
The most probable one is that this kind of tool would be used in far less obvious, if at all visible, ways.
In that situation some kind of honeypot/canary strategy would be nice to reveal shady use but I can’t seem to come up with a realistic one.