TL;DR they made a modernised version of an nntp client and server ;-)
I can't believe that they even wrote a new app when they could just have installed mailman, or any other mailing list server, or even a news server.
If I were to create a company I would create mailing lists for discussion and a wiki for consolidation of knowledge. In my humble opinion, there is no need for new fancy apps. The tools are there.
What does the new app they created provide that cannot be done with the tools I mentionned?
I feel old. I'm 36 years old and I see too many articles of people discovering stuff we discussed at length in the 90s. This IRC vs Usenet discussion is an old one.