Signal hates anyone who even thinks about using this IM app as the de-facto IM app, or with more than that one person who also tries Singal as an annual ritual in your friend circle. I tried to use the app again after a year or so. Gave it full contact permission and it wasn't able to pick friends who are alreasy on Signal. I was not even able to send them messages using the number. But a friend was able to send it a message to me. After 2-3 days finally the app started showing friend's name that's in contact. Tut there were scary warnings (I know, I know that's for my safery). The whole UX just feels at odd with anything and everything I've used. They manage to look and feel worse than WhatsApp of today and that I'd say is an achievement.