It is not a long solved problem if it takes a demo to prove. If it were long solved it'd be self evident. This argument wouldn't exist to begin with.

A demo is worthless if experience doesn't prove it in the long run. And I have the latter, and it doesn't prove. Yes, I know it's probably me, or more likely my friends doing something wrong. One of them restricted Conversations from running in the background for example, non-techies do all sorts of silly stuff. But then again, it shouldn't break with non-techies either. Nothing breaks with them aside from XMPP. Not even WhatsApp which is based on XMPP afaik

While being "techy" I too restrict Conversations from running in background. Moreover, it's annoying and dangerous to keep XMPP running (reconnecting, giving out your metadata) while roaming over different networks, so I'm killing it myself. But, aside from tremendously, ridiculously bad UI concept, I find Conversations to be one of the most reliable OMEMO-enables jabber clients for Android.

What metadata do you believe it is giving out?.. And how it could possibly even be comparable to what an android espionage device gives out by itself in the first place