[harry8]

>legally forbidden to use such data.

Great training set to check the results of other factors, then use those to infer.

Moreover "legally forbidden" means jack faeces unless you can point to people who had convictions recorded and went to jail. Otherwise we're merely discussing business conditions & expenses.

[sedatk]

I mean, of course but that’s applicable to all regulations, isn’t it? Yes, they can be violated, but what else do we have?

[harry8]

If you keep things secret they can't be used in a regulation breach by people who don't know those things.

We have /that/.

Theft is illegal and you lock your house, and that regulation is a serious one. The idea we have nothing but regulation is absurd in the extreme.