I get that. SimpleX has been working great for me. I run it on Start9. To me there is too many kinds of dm's to even use. I still get nip4 all the time. I just don't respond.
Discussion
It works well, without issue.
I like it. Easy to share contact. I am trying to remove personal phone service.
I've heard VoIP is the new privacy hype. What about that phone service that Above Phone pushes, xmpp?? Satphones? Is there a more open source or secure version of Zello?