Can you help me understand why Signal, although it might seem them care about privacy, in effect they don't protect it as much as they could and should?

I'm particularly looking for answers from privacy-oriented users who do not use Google Play / Apple Store, or users who wish to migrate away from those platforms.

Please look at this for more details:

- https://github.com/signalapp/libsignal-service-java/pull/53#issuecomment-404507178

- https://old.reddit.com/r/privacytoolsIO/comments/917uu7/signal_should_be_removed_as_it_doesnt_work/e2w92mc/