He never said he wants free speech for everyone :) TBH the shame should be on those who believed that Musk could somehow be the first right-wing extremist in history that wished the people at large had more rights and more freedoms.
Yes he fucking did. He called himself a “free speech absolutist” which was just a blatant lie just like every other sentence that has farted out of his Nazi lips.
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.
This just means you wrap your signal links in a URL shortener.
A slight hassle; but all the more reason to hate the muskratt.
We should be quietly linking anyone with a need to send a signal link to a nice privacy respecting URL shortening instance somewhere that will basically delete the link in 3-7 days unless told otherwise to keep it around by the user at creation.
Heck; host your own URL shortener while you're at it.