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There must be a hundred third-party freeware apps that let you encrypt files. Heck, even zip archivers have a password protect option. If you’re a whistleblower, you’re going to be collecting data over long periods of time, not sending instant messages. You can use OnionShare (droid-ify) to create temporary TOR links if you really need to share a file quickly and untraceably.
I think the questions are from bots, testing topics to farm controversy or outrage points. The greater the number of replies, the more likely the topic will be used in a future marketing or agit-prop campaign.
So you get these really stupid, controversial, psychopathic takes that no one should be taking seriously. The point of the exercise is the emotional reaction, the outrage, not getting a serious answer.