A few years ago, a friend was telling me about Signal and that I should sign up. My response was, “If they’re telling you that it can’t be tracked, isn’t that kind of a red flag that you’re being tracked? Tell you what… if you have anything super-secret to tell me, call me and we’ll go for a walk without our phones.”
I always thought that Signal was a government operation; directly or indirectly.
It’s value is against commercial espionage of the ordinary sort - what kind of car you want to buy, what hospital you frequent, what family strife you may have, and so on.
For political dissent against the government.. it is not so useful.
C.W.