Two of the articles you linked to are from 2011 or prior. Since then, it's been demonstrated that BBM can be intercepted.

Just a couple weeks ago, a Blackberry executive publicly criticized Apple for not assisting law enforcement when it came to mobile device security.

And if that isn't enough to cause you concern, Blackberry is in big trouble. Who's going to buy them? What are they going to do with all that data?

That's why I'm looking for IM with E2EE enabled by default. So I use OTR but not many want to play with sharing secrets, question and answers or any other method of authentication, not mentioning fingerprint verification.

you can add here Romania RDS personal not working Romania Romtelecom personal working

also i can see both accounts on romtelecom and none on RDS

how about slack? a lot of people are using it