They usually oppose that because it helps them build engagement. People discovering each other helps increase app usage. I don't really like it either but all

They usually oppose that because it helps them build engagement. People discovering each other helps increase app usage. I don't really like it either but all the other big players do this and it does really help. If signal doesn't it'll be even harder to get decent marketshare. There's this weird situation where fighting something means adopting some of their tactics even if you don't agree with them, otherwise it's not viable to compete. I think Signal is still better than eg WhatsApp but they are pretty similar in some ways because less privacy-sensitive users expect certain features like auto discovery. And without them it'll always remain a fringe thing.