I think Signal shot themselves squarely in the dick by removing SMS functionality.

Previously, you could use Signal as the primary SMS/messenger app. Any conversations with other Signal clients secure. Conversations in SMS/MMS? Marked as not-secure.

But, out of some purity concerns, SMS functionality was removed and the dev team focused on adding useless shit like “stickers” and then the pin-code harassment.

Signal adoption plummeted as intended (?)

Easy! Just replace their usual SMS app with Signal, and then every contact they have that does use Signal is private and secure!

Oh. Wait. That’s exactly the functionality that Signal removed in their effort to ensure that Signal is never widely adopted…