Replying to @alextcone and @swodinsky, @montezumachavez, @RobertJBateman, @Ryanbarwick, @aexm, @atgrote
The problem is that you need to have a contract to prove that you told the other party that they couldn't reuse the data, or had to honour opt outs. Again, if it's just illegal then no need for a contract!
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