Also, let's not forget another point, is that CD Projekt was already a large distributor/localizer in Poland long before they had their RED division: https://en.wikipedia.org/wiki/CD_Projekt
So they didn't really start out of nothing when it comes to having connections with game developers.
The problem with taking a discussion from a public forum private, is that in the current state, everyone can choose to dispose of the room.
As proven in this very thread, it doesn't really work. The idea that everyone can dispose of the room is interesting, but there probably should be an option so that only the creator (or the first to join) can dispose of the room, for such public place cases.
Disposing of the room does remove it and kick everyone out, indeed. And then the link is invalid. Neat. According for the privacy page, it's all living in RAM only, so in theory there is no logging (https://niltalk.com/pages/privacy). Guess we can check the code and see for ourselves, of course.
So they didn't really start out of nothing when it comes to having connections with game developers.