You can use SimpleX or Jabber if you're looking for private messaging systems.
SimpleX does have E2E encryption by default and you won't need to provide any info like email, phone number or anything. There is even a Bitcointalk bot running on SimpleX by the way.
From my side, I will still prefer emails + PGP but of course it's not as convenient as apps like SimpleX.
SimpleX does have E2E encryption by default and you won't need to provide any info like email, phone number or anything. There is even a Bitcointalk bot running on SimpleX by the way.
From my side, I will still prefer emails + PGP but of course it's not as convenient as apps like SimpleX.