@strypey @snikket_im Delta Chat is relatively new and I don't use it. Basically I'm already familiar with #XMPP, then #Quicksy already provides the onboarding and contact discovery familiar to most people through WhatsApp (SMS OTP sign up and contact discovery via phone book).
Unlike most other software, choice of messaging app is not just personal (the social cost of not using WhatsApp is too high and not easy for most people). So we need a different strategy and well coordinated campaign.