Another political activist, I'm not certain how I feel about this. Seems like this might not go well, looking at what happens to companies with “activism” at their heart.
The thing is, for me to exercise my right to privacy, it helps if I can practice that right with more than one or two people in my address book.
And it didn't take much effort. The desire for a cross-platform (iOS/Android) group chat system, Signal's features like desktop apps and ease of use, and a generally growing dislike for Facebook/Meta made it pretty painless and organic.
The fourth amendment exists for a reason.