this post was submitted on 02 Nov 2025
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Privacy
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Even with binning, it doesn't prevent the date from being learned. All an application would have to do is ask for the bin every day. On the day it changes you learned their birthday. It only works for <18s, but isn't that specifically who they're saying they're trying to protect?
Yeah this is a real issue.
The smallest window for binning is 2 years and you would need another identifier to compare it against for any meaningful data gathering. If the law also provides penalties for gathering that type of telemetry on minors then it should be solid.
If it does that, sure. It would create penalties at least.
You wouldn't need another identifier though. On your 16th birthday, for example, your age range changes from <16 to >16. If the application checked every day and recorded it, then they would then know your birthday. The bins are larger, but switching bins is by the day. It doesn't matter how large the bins are at that point.