> Monitoring children's DMs is the responsibility of the parents, not megacorps.

Yup, but the tools provided make that easy or hard.

But putting that emotive bit to one side, Megacorps have a vested interest in not being responsible to children. They need children's eye balls to drive advertising revenue. If that means sending them corrosive shit, then so be it.

Its a bigger issue than encryption, its editorial choice.